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Kensington 4-Button USB Expert Pro Mouse - Trackball

B&H # KEMEPU Mfr # K64325
In Stock
Free Expedited Shipping
Reg. Price: $78.74
Instant Savings: $13.00
Offer ends DEC 31 '14 Limited supply at this price
You Pay: $65.74

Enjoy the ultimate trackball with the 4-Button USB Expert Pro Mouse. Starting with an ergonomic design including built-in wrist rest, four easily accessible buttons, and a scroll ring surrounding the ball itself, the Expert Mouse offers users maximum control at their fingertips. Diamond Eye optical technology provides you with extreme precision while navigating. Cross-platform compatible, this item comes with a five year warranty.

Scroll Ring
Scroll comfortably with a minimum of wrist movement with this handy scroll ring immediately surrounding the track ball.
Diamond Eye Optical Technology
Optical sensors provide users with a maximum amount of control over their cursor.
Built-in Wrist Rest
A built in wrist rest provides support and prevents Carpal Tunnel syndrome.
Wireless No
Ergonomic Yes
Buttons 4
Scroll Wheel Yes
USB Yes
PS2 No
System Requirements Mac: OS X or later
PC: Windows 98 or later
Warranty 5 years
Kensington 4-Button USB Expert Pro Mouse - Trackball
  • 4-Button USB Expert Mouse Pro
  • Detachable Wrist Rest
  • 5 Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Kensington4-Button USB Expert Pro Mouse - Trackball
     
    4.5

    (based on 94 reviews)

    Ratings Distribution

    • 5 Stars

       

      (61)

    • 4 Stars

       

      (20)

    • 3 Stars

       

      (10)

    • 2 Stars

       

      (2)

    • 1 Stars

       

      (1)

    93%

    of respondents would recommend this to a friend.

    Pros

    • Fast response (71)
    • Simple controls (69)
    • Smooth movement (68)
    • Ergonomic layout (60)
    • Easy to clean (44)

    Cons

    • Uncomfortable (5)

    Best Uses

    • Graphic design (38)
    • Web surfing (36)
    • Business applications (31)
    • Word processing (22)
    • Gaming (15)
      • Reviewer Profile:
      • Power user (80), Casual user (10)
      • Computer Platform:
      • Mac (36), PC (22)
      • Primary use:
      • Business (10), Personal (4)

    Most Liked Positive Review

     

    Top quality trackball

    The Kensington Expert Pro (Mouse) Trackball (model #K64325) is well designed, well made and offers the features needed for a high productivity workstation system. The sensitivity to trackball motion is at...Read complete review

    The Kensington Expert Pro (Mouse) Trackball (model #K64325) is well designed, well made and offers the features needed for a high productivity workstation system. The sensitivity to trackball motion is at a level well suited to general workstation pointing needs. The ball glides easily in its socket and can be tipped out for cleaning out the inevitable dust accumulation. The four buttons provide more that what is needed for the expected multi-button Unix/Linux "mouse" device, and the convenient scroll ring around the ball is a significant boon. The USB interface to the host system is supplemented by a PS2 adapter for older systems (I find it very helpful to have the same pointing device on both my "legacy" server/firewall system and my primary production workstation). The provision of an optional wrist rest that attaches to the base unit will almost likely be an ergonomic necessity for people who spend a long time at their system doing production work (such as the software development that I do).

    Though the construction is quite solid for even professional workstation use, it is not up to industrial levels of robustness. The shape of the base unit - a slightly convex top and buttons on a casing angled towards the user - while adequate could have been designed with a much more hand-cupping shape and the buttons placed where the fingers naturally fall to significantly improve its ergonomics; the button placement at the four corners of the ball platform requires more finger and wrist motion than is desired, though the buttons are helpfully quite large. Slight inconsistency in manufacturing precision also show where this matters in the ball glide: In the two units that I have in one the ball glides very freely while in the other it moves easily but can not be "spun" freely for fast zipping across a large, multi-screen display.

    Since manufacturers have apparently abandoned new development of trackball designs their seems to be no more effort to build the "perfect" trackball that fits naturally in the hand in its "at rest" position with the ball and actuation buttons placed in "effortless" positions. After an exhaustive search of all available trackballs, both consumer and industrial, I concluded that the Kensington Expert Pro Trackball is the best available for professional workstation use.

    VS

    Most Liked Negative Review

     

    Nice features, works well but hurts hand

    I bought this because every professional engineer/editor (music) I know uses it and swears by it. It's extremely functional but my hand starts to ache after a couple hours of use. This...Read complete review

    I bought this because every professional engineer/editor (music) I know uses it and swears by it. It's extremely functional but my hand starts to ache after a couple hours of use. This doesn't happen when I use my old Logitech trackball which seems to have better ergonomics. The Kensington puts my wrist at a bad angle that after time starts to wear on me.

    Reviewed by 94 customers

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    5.0

    Excellent trackball

    By tilley

    from eastern canada

    About Me Power user

    Verified Buyer

    Pros

    • Accurate Controls
    • Easy To Clean
    • Ergonomic Layout
    • Smooth Movement

    Cons

    • Stiff Scroll Wheel

    Best Uses

    • Business Applications
    • Photoshop Photo Editing
    • Web Surfing
    • Word Processing

    Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

    Excellent trackball for the long usage period. You can rest the whole hand on this pointing device. Very comfortable, no more moving your arm like using the conventional mouse.All five fingers control the trackball actionOnly cons'point: during break-in period, the scroll wheel is stiff, resistant.

    • Computer Platform:
    • PC

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    5.0

    Efficiency & Flexibility

    By Radar

    from NE Pennsylvania

    About Me Power user

    Verified Buyer

    Pros

    • Accurate Controls
    • Easy To Clean
    • Ergonomic Layout
    • Fast Response
    • Flexible Options
    • Programmable
    • Smooth Movement

    Cons

      Best Uses

      • Business Applications
      • Graphic Design
      • Web Surfing
      • Word Processing

      Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

      Have been using Kensington Trackballs for years because they require only the footprint space; no moving the mouse around. Trackball movement can be programmed for rapid cursor movement or for precise, minute movements. 4 buttons can also be programmed, e.g. one for click, one for double click, one for click & drag, one for right button menu; the buttons can further be programmed for chording (using two buttons at the same time) for even more operations. The ball moves smoothly in its depression & is easily removed for cleaning. Scroll ring glides easily clockwise or counterclockwise for easy scrolling. The built-in wrist rest helps prevent wrist fatigue and overuse syndromes. I love my trackball and will continue to use one as long as hand-input devices are required.

      • Computer Platform:
      • Mac

      Share this review

       
      5.0

      Flexible Comfortable Mouse

      By Nate the Great

      from Philadelphia, PA

      About Me Power user

      Verified Buyer

      Pros

      • Ambidextrous
      • Customizable
      • Ergonomic Layout
      • Smooth Movement

      Cons

      • Uncomfortable

      Best Uses

      • Business Applications
      • CAD
      • Drafting
      • Draftingcad
      • Graphic Design

      Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

      I bought this mouse to alleviate wrist/hand pain I have been experiencing for the past year doing computer work. I work with AutoCAD software daily, and finding a mouse that provides easy access to most common functions in a comfortable form is difficult. This mouse features a large trackball (size of a plum) that is easy to manipulate with either a couple fingers, a thumb, or even the entire palm, and the motion is quite natural. The best part about the trackball is the fact that your hand is not gripping anything, which provides an advantage over traditional mice where the user must grip the mouse between thumb and fingers or push with the entire hand. There are four buttons in a flower configuration, which is perfect for lefties like me or people who switch primary hands for computer work (which I HIGHLY recommend). The scroll feature is on a ribbed rubber track just around the trackball, which is a little sluggish at the moment to manipulate, and I accidentally click one of the mouse buttons sometimes while scrolling, but it's not a big deal. The four buttons are programmable, and the functions available in the software include double clicking, triple clicking, dragging, and panning just to name a few. This allows anyone familiar with AutoCAD's pan function through clicking the scroll wheel of a traditional mouse to assign the same function to any of these buttons. There are also two convenient functions you can program for simultaneous button presses, top left & right, or bottom left & right, which allows a total of 6 programmable functions, not including the scroll. Scroll speed is adjustable within the software, by the way.In general, the mouse does everything I need it to in a relatively comfortable package. The one real problem I have with the mouse is the angle of the base, which is sloped up from the front to back, and while this idea makes sense, when your keyboard tray/work surface is level as needed, your hand is tilted up to hover over or rest on the mouse, which can get uncomfortable. Clicking the mouse buttons while your wrist is bent is definitely not good ergonomics, but this can be adjusted by placing a mat under the mouse to compensate for the angle. You may need to add a riser to your keyboard as well for a permanent solution.

      • Computer Platform:
      • PC

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      5.0

      Still working like new, 8+ years later

      By Mr.

      from Honolulu

      About Me Power user

      Verified Buyer

      Pros

      • Accurate Controls
      • Easy To Clean
      • Ergonomic Layout
      • Fast Response
      • Smooth Movement

      Cons

        Best Uses

        • Graphic Design
        • Web Surfing
        • Word Processing

        Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

        High School media program that purchased 4, 8 years ago - 1 went missing after a renovation. The remaining 3 are still working like new, so when the mice that came with our computers started having problems, 30 more were acquired.

        Students are sometimes slow to accept a different approach to what they consider the "norm."

        • Computer Platform:
        • Mac

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        5.0

        Excellent

        By Don D

        from East Windsor, NJ

        About Me Power user

        Verified Buyer

        Pros

        • Accurate Controls
        • Ergonomic Layout
        • Fast Response
        • Smooth Movement

        Cons

          Best Uses

          • Architectural Design

          Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

          I am an Architect that uses AutoCAD for design. Utilizing a trackball for design is nearly required with the control it allows within the software. I have been searching for a couple years for one that actually gives such precision control and still feels comfortable in your hand. After testing at least 10 other trackballs this one has fit the bill perfectly. Completely customizable. Completely comfortable. Offering complete precision control. As far as B&H goes, I ordered it on a Tuesday and it was at my door on Wednesday when I got home from work. What more can you ask for? Great job B&H!

          • Computer Platform:
          • PC

          Share this review

           
          4.0

          At Last, the Trackball for Me

          By Baron Rojo

          from Cumberland, Ohio

          About Me Casual User

          Verified Buyer

          Pros

          • Accurate Controls
          • Fast Response
          • Four Buttons
          • Scroll Ring
          • Smooth Movement

          Cons

          • Uncomfortable Wrist Rest

          Best Uses

          • Graphic Design
          • Web Surfing
          • Word Processing

          Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

          I've never liked mice. While first shopping for trackballs, I decided that one with the largest ball I could find would be best for me. But trackballs weren't very popular at the time, and the Logitech Marble Mouse was the best choice I could find. It's still sold as the Trackman Marble and B&H stocks it; I've never had any complaints about mine, but now that a better selection is available and it's finally time for a change, the Kensington Expert Mouse trackball proves me right all along.

          The Kensington Expert Pro has a ball about half-again as large as the one in the Kensington Orbit (which I bought at the same time for comparison), and its size and weight give a hefty feel and great precision. Having read other reviews on this Website, I should point out that both the ball and scroll ring on mine moved freely and smoothly, with no binding or break-in needed. The scroll ring seems to produce more jerkiness in onscreen scrolling movement than the ring on the Kensington Orbit, but I've seen similar jerkiness from scroll wheels on mice; particularly those with detent stops. There are no detents in Kensington scroll rings.

          This trackball is truly ambidextrous, and the four buttons make it possible to operate the ball with a thumb if desired, and the user can find a button arrangement that works. Download the TrackballWorks driver! It's the only way to get control over all four buttons, or to reverse the scroll ring operation. TrackballWorks also offers numerous extra button function options, as well as control pointer and scroll rates. And it switches automatically to accomodate whatever Kensington trackball you have plugged in. Other reviewers have been unable to get TrackballWorks running in Windows 7, but I got it working on the first try. This may be due to a new release.

          The Kensington Expert Pro comes with an attachable wrist rest, and despite the look and feel, it's actually padded (skinned foam, like you've seen in cars), but it's not soft enough -- within half an hour, my wrist was hurting from pressing on it and I went back to a gel pad I bought years ago at retail. Thus equipped, I really enjoy using it.

          • Computer Platform:
          • PC

          Share this review

           
          4.0

          Very good product.

          By Jim B

          from Alnuquerque, NM

          About Me Power user

          Verified Buyer

          Pros

          • Accurate Controls
          • Ergonomic Layout
          • Fast Response
          • Smooth Movement

          Cons

            Best Uses

            • Graphic Design

            Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

            4 Stars because the driver is not Win 8.1 compatible. Cannot program the two upper buttons.
            Otherwise, works well. Replaced a 10 year old Expert Mouse 4.0. Necessary as the large track ball does not aggravate carpel tunnel.

            • Computer Platform:
            • PC

            Share this review

             
            5.0

            best of the trackballs

            By Soccerboy

            from New York, NY

            About Me Casual User

            Verified Buyer

            Pros

            • Accurate Controls
            • Ergonomic Layout
            • Fast Response
            • Smooth Movement

            Cons

              Best Uses

              • Gaming
              • Word Processing

              Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

              I have had many trackballs and this is the best. It is fat and quick.

              • Computer Platform:
              • Mac

              Share this review

               
              5.0

              Not for the weak and timid...

              By rskDigital

              from Georgia

              About Me Power user

              Verified Buyer

              Pros

              • Accurate Controls
              • Easy To Clean
              • Ergonomic Layout
              • Fast Response
              • Smooth Movement

              Cons

                Best Uses

                • Graphic Design
                • Laptop

                Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                Simply put, once you go track, you never go back!!

                • Computer Platform:
                • Mac

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                (1 of 1 customers found this review helpful)

                 
                5.0

                Easy Setup, Great Value

                By soundone

                from So. Cal

                About Me Power user

                Verified Buyer

                Pros

                • Accurate Controls
                • Easy To Clean
                • Ergonomic Layout
                • Fast Response
                • Smooth Movement

                Cons

                  Best Uses

                    Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                    Flexible, Easy to use, Great price and value.It does take a little bit of use (a few hours) to loosen up the track ball. But after that, it's great fluid movement.

                    • Computer Platform:
                    • Mac

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                    (1 of 1 customers found this review helpful)

                     
                    5.0

                    Lifesaver product

                    By Chintones

                    from Los Angeles, CA.

                    About Me Power user

                    Verified Buyer

                    Pros

                    • Accurate Controls
                    • Easy To Clean
                    • Ergonomic Layout
                    • Fast Response
                    • Smooth Movement

                    Cons

                      Best Uses

                        Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                        Have gone through a couple of earlier versions of these and thought Kensington had discontinued the product. I was using the Orbit, which works but doesn't have the extra buttons and the 'feel' of the Pro. It's a lifesaver for those of us using these repetitive functions everyday.

                        • Computer Platform:
                        • Mac

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                        5.0

                        Excellent Service

                        By Bollie Jackson

                        from Newport Beach, CA.

                        About Me Power user

                        Verified Buyer

                        Pros

                        • Accurate Tracking
                        • Comfortable Design
                        • Fast Response
                        • Glides Smoothly
                        • Great Features
                        • Works On Any Surface

                        Cons

                          Best Uses

                          • Everyday Use
                          • Gaming
                          • Professional
                          • Traveling
                          • Web Browsing

                          Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                          The service provided by B&H was excellent in every way. The product was shipped properly and on time per the noted delivery details. The product was exactly what I ordered and met all of my expectations. Lastly, the product was listed at the lowest price I could find in my search for shopping to buy this product. I totally recommend this superb company which has gained my trust for future purchases. Thanks, B&H :)

                          • Primary use:
                          • Personal
                          • Computer Platform:
                          • Mac

                          Share this review

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          Well Worth the Cost

                          By Business Pro

                          from Chatsworth, CA

                          About Me Power user

                          Verified Buyer

                          Pros

                          • Accurate Tracking
                          • Comfortable Design
                          • Fast Response
                          • Glides Smoothly
                          • Great Features

                          Cons

                            Best Uses

                            • Everyday Use
                            • Professional
                            • Web Browsing

                            Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                            Works flawlessly and is well constructed.

                            • Primary use:
                            • Business
                            • Computer Platform:
                            • PC

                            Share this review

                            (1 of 1 customers found this review helpful)

                             
                            5.0

                            This is *the* trackball to use!

                            By Gary the mastering engineer

                            from Reno, NV

                            About Me Power user

                            Verified Buyer

                            Pros

                            • Accurate Tracking
                            • Comfortable Design
                            • Fast Response
                            • Glides Smoothly
                            • Great Features
                            • Works On Any Surface

                            Cons

                              Best Uses

                              • Everyday Use
                              • Professional
                              • Web Browsing

                              Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                              When I first saw the original Kensington trackball in 1987 or so, I thought "no way"! Once I finally grew up and started using them (and I've tried others), I am addicted. If they didn't last so long, I would have bought many more of them by now, but as it is, I've probably only bought 6 or 7 over the years. It's the best out there!

                              • Primary use:
                              • Business
                              • Computer Platform:
                              • PC

                              Share this review

                              (1 of 1 customers found this review helpful)

                               
                              5.0

                              Great tool

                              By BadDog

                              from Bayonne, NJ

                              About Me Power user

                              Verified Buyer

                              Pros

                              • Accurate Tracking
                              • Comfortable Design
                              • Fast Response
                              • Glides Smoothly
                              • Great Features
                              • Works On Any Surface

                              Cons

                                Best Uses

                                • Everyday Use
                                • Gaming
                                • Professional
                                • Web Browsing

                                Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                Just bought my 4th one. No problems with any. All but one still operational, two after many years of use. From time to time, you do need to clean the trackball bed, of any dust build up but it's easy since the trackball is easily removed and re-placed.With this trackball I can speedily navigate thru all my open windows,using multiple monitors(2-3)at a time.I have used other brands with smaller trackballs, and although they have served their purpose, the size of the Kensington trackball is a perfect fit for my hands. The 4 buttons, and scroll ring extremely useful, for the same reason. They make navigating easy, and enjoyable. No signs of carpel tunnel, wrist pain or fatigue, with the use of the very helpful wrist rest.

                                • Primary use:
                                • Business
                                • Computer Platform:
                                • PC

                                Share this review

                                (1 of 1 customers found this review helpful)

                                 
                                5.0

                                Kensington Trackball

                                By midigeek

                                from Fort Smith, AR

                                About Me Power user

                                Verified Buyer

                                Pros

                                • Accurate Tracking
                                • Comfortable Design
                                • Fast Response
                                • Great Features
                                • Works On Any Surface

                                Cons

                                  Best Uses

                                  • Everyday Use
                                  • Gaming
                                  • Professional
                                  • Web Browsing

                                  Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                  Simgle handedly the best company to make trackballs. Also have the BEST warranty in the business with a 5 year warranty. I have used their trackballs since at least 1998.

                                  • Primary use:
                                  • Business
                                  • Computer Platform:
                                  • Mac

                                  Share this review

                                   
                                  4.0

                                  great help for wrist fatigue

                                  By Jack

                                  from Trenton, NJ

                                  About Me Power user

                                  Verified Buyer

                                  Pros

                                  • Comfortable Design
                                  • Glides Smoothly
                                  • Great Features
                                  • Works On Any Surface

                                  Cons

                                  • Takes Getting Used To

                                  Best Uses

                                  • Everyday Use

                                  Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                  I spend 4-6 hours a day at the computer and have arthritis. This trackball really helps alleviate some of the pain/discomfort in the wrist area from mousing around during long periods. Having programmable buttons helps me to work quicker.This is a replacement for a worn out unit.

                                  • Primary use:
                                  • Personal
                                  • Computer Platform:
                                  • Mac

                                  Share this review

                                   
                                  5.0

                                  Awesome product!!!!

                                  By lindy lu

                                  from Carson, California

                                  About Me Power user

                                  Pros

                                  • Accurate Tracking
                                  • Comfortable Design
                                  • Fast Response
                                  • Glides Smoothly
                                  • Great Features
                                  • Works On Any Surface

                                  Cons

                                    Best Uses

                                    • Everyday Use
                                    • Professional
                                    • Web Browsing

                                    Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                    I have used this mouse trackball for years and it is the best on the market. I have one at work now I need one for my home computer. I have to save my money for the one for my home computer, my job paid for the one at work, again awesome mouse.

                                    • Primary use:
                                    • Business
                                    • Computer Platform:
                                    • Other

                                    Share this review

                                    (1 of 1 customers found this review helpful)

                                     
                                    5.0

                                    Reduces my arm pain and is faster

                                    By crogers tech artist

                                    from SF,CA,US

                                    About Me Power user

                                    Verified Buyer

                                    Pros

                                    • Accurate Tracking
                                    • Comfortable Design
                                    • Fast Response
                                    • Glides Smoothly
                                    • Great Features
                                    • Great For 2-3 Monitors
                                    • Reduces Arm Pain For Me
                                    • Works For Leftright Hand
                                    • Works On Any Surface

                                    Cons

                                    • Not Great For Most Games
                                    • Takes A Little Learning

                                    Best Uses

                                    • Best For Easing Arm Pain
                                    • Best For Making 3d Art
                                    • Everyday Use
                                    • Professional
                                    • Web Browsing

                                    Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                    Ive used many trackballs and this is the best. I use them because a mouse will make my arm hurt a lot more than a trackball. The billiard ball sized trackball makes it easy and quick to navigate 3 monitors while still being precise and the button layout and scroll ring are placed well.If you have arm pain from a mouse, you should try a trackball, it takes a few days to get used to but i cant work without one now.

                                    • Primary use:
                                    • Business
                                    • Computer Platform:
                                    • PC

                                    Share this review

                                    (1 of 1 customers found this review helpful)

                                     
                                    5.0

                                    Just ordered a replacement

                                    By michael

                                    from draper UT

                                    About Me Power user

                                    Verified Buyer

                                    Pros

                                    • Accurate Tracking
                                    • Comfortable Design
                                    • Fast Response
                                    • Glides Smoothly
                                    • Great Features
                                    • Works On Any Surface

                                    Cons

                                      Best Uses

                                      • Professional

                                      Comments about Kensington 4-Button USB Expert Pro Mouse - Trackball:

                                      Have always used this mouse and love it. Finally had to order a replacement after 6 years of heavy use wore out my old one.

                                      • Primary use:
                                      • Business
                                      • Computer Platform:
                                      • Mac

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