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Kensington Expert Mouse Wired Trackball

BH #KEMEPU • MFR #K64325
222 reviews
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Kensington Expert Mouse Wired Trackball
Key Features
  • DiamondEye Optical Tracking Technology
  • Scroll Ring for Comfortable Operation
  • Detachable Wrist Pad
  • Compatible with Windows and Mac Systems
Enjoy comfortable control and accuracy with the Kensington Expert Mouse Wired Trackball. 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. Additionally, this Trackball is cross-platform compatible.
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$62.99
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Connectivity
Wired
Wireless
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Ken ington Expert Overview

From Manufacturer

Enjoy comfortable control and accuracy with the Kensington Expert Mouse Wired Trackball. 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. Additionally, this Trackball is cross-platform compatible.

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.
UPC: 000004427278

Ken ington Expert Specs

Mouse
dpi
400
Scroll Type
Scroll Wheel
Number of Buttons
4
Mouse Hand Orientation
Ambidextrous
LED Indicator
No
Trackball Size
2" / 55 mm
Connectivity
Connection
Wired: USB-A Cable (Non-Removable)
Full-Functionality OS Support
Chrome OS, Mac, Windows
General
Color
Gray
Packaging Info
Package Weight
1.335 lb
Box Dimensions (LxWxH)
8.2 x 6.6 x 4.1"

Ken ington Expert Reviews

Better than wireless

By Nicholas
Rated 3 out of 5
Date: 2026-09-02

For this trackball, I wouldn't reccomend spending an extra $30 to get the wireless one when its going to be staying in the same position on your desk. There is no benefit to the wireless one for my workflow. Worst part about this is the scroll wheel. It is plasticky and loose, and looks so awful when scrolling on my macbook. But it works ok for pro tools etc. I am getting pretty fast at it which is nice.

Bad app

By Julianna
Rated 2 out of 5
Date: 2025-11-01

Mouse is great but the app to change the buttons doesn’t work which is why I bought it

See any errors on this page?

Can this device be used with 14" MacBook Pro with ...

Can this device be used with 14" MacBook Pro with M2Max chip?
Asked by: Michael
The Kensington Expert Mouse Wired Trackball is fully compatible with the 14" MacBook Pro M2 Max laptop.
Answered by: Paige K
Date published: 2023-02-10

question

I just bought one of these to replace my aging Microsoft Trackball Explorer. The Kensington Expert Trackball I now have in my possession, cannot seem to operate Photoshop's Selection Tool. Is anyone else experiencing a similar issue?
Asked by: Nick
I am able to use Photoshop's selection tool with this mouse. Granted I'm over a year late to the party.
Answered by: Ian B.
Date published: 2018-08-27

How long is the cord?

How long is the cord?
Asked by: Jack
6 feet in length.
Answered by: Daniel
Date published: 2021-02-24

question

how do i set the mouse to finish typing a word I use a lot. I did set it up so that when I type TY it spells out Thank You but i can't remember how I did?
Asked by: jean s.
This is not a feature of this item. If you are using OS X 10.9 or newer you can enable the feature in your system preferences. (Keyboard pane, Text tab)
Answered by: James B.
Date published: 2018-08-27

What is product's footprint?

What is product's footprint?
Asked by: Ron
It is 5” wide x 6” long
Answered by: Alice
Date published: 2025-05-03

question

Does this work with Mountain lion 10.7.5?
Asked by: joel g.
I have used the Expert Mouse with Mountain lion and everything up to 10.11.3 You will need the installation of TrackballWork 1.3 (that corresponds to Mountain Lion).
Answered by: Simeon R.
Date published: 2018-08-27

question

is it compatible with windows 10?
Asked by: Anonymous
Yes it is.
Answered by: Kensington Expert
Date published: 2018-08-27

question

usb 2 or usb 3?
Asked by: Peter B M.
USB 2
Answered by: Jacob K.
Date published: 2025-08-27
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