Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher

Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher

Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher

Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher

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Product Highlights

  • Bandwidth of 440 MHz
  • Control RS-232, RS-485, & Ethernet
  • Contact Closure & IR
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B&H $1000 Giveaway

Share your most-wanted item with friends & family for chances to win a $1000 B&H Gift Card. It's that easy!

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Congrats to our winners so far — Mark P., Lauren K. & Daniel M.

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third-party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total three (3) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1000.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize to the e-mail address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the e-mail account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An e-mail account holder shall mean the natural person assigned to such e-mail account by the internet access or online service provider or other organization responsible for assigning e-mail addresses for the domain associated with such e-mail account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $1,000.00 Giveaway Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

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  • 1Description

The Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher is a high-performance analog step-in switcher for computer graphics video with resolutions up to WUXGA and unbalanced stereo audio signals. The unit can switch any 1 of 3 inputs to 1 computer graphics video, 1 unbalanced and 1 balanced stereo audio, and 1 twisted pair output. The VP-31KSi switcher works in conjunction with up to 3 VGA Remote Control Step-in Modules including SI-1VGA (for TBUS-10), SI-VGAT (under the table), and WSI-1VGA (for standard TBUSes). It is also compatible with HDTV Component video signals when used with a breakout cable such as Kramer C-GM/3RVF.

High Bandwidth: 440 MHz (-3 dB), CAT 5 (Rec Out) 150 MHz
HDTV Compatible
Kr-isp Advanced Sync Processing: Ensures compatibility with a wide range of computers (even if the sync level is too low) by restoring the sync signal waveform
Remote Step-in Switching: Supports up to 3 Kramer Remote Step-In Panels (for example, SI-1VGA, WSI-1VGA, or SI-VGAT) for remote inputs and remote step-in control
I-EDIDPro Kramer Intelligent EDID Processing: Intelligent EDID handling & processing algorithm ensures plug and play operation for analog systems
Multiple Unit Cascade: Cascades up to 8 units to create a virtual switcher of up to 17 inputs
Audio Switching Modes: Audio-Follows-Video (AFV) and audio breakaway switching
Flexible Control Options: Front panel, remote step-in panels, RS-232 (K-Router Windows-based software is included), RS-485, Ethernet via a built-in web server, contact closure, & IR remote (included)
Desktop Size: Compact size; 2 units can be rack mounted side-by-side in a 1U rack space with an optional RK-1 adapter
Applications: Display systems requiring simple input selection, remote monitoring of computer activity in schools and businesses, rental / staging applications, multimedia and presentation source selection
In the Box
Kramer VP-31KSi 3 x 1 Computer Graphics Video & Stereo Audio Step-In Switcher
  • Power Cord
  • RC-IR3 Infrared Remote Control Transmitter (With Batteries & User Manual)
  • Power Adapter
  • 7-Year Warranty
  • Table of Contents
    • 1Description
    Inputs 3x XGA on 15-pin HD connectors
    3x unbalanced stereo audio on 3.5 mm mini jacks
    Outputs 1x XGA on a 15-pin HD connector
    1x twisted pair on an RJ-45 connector
    1x unbalanced stereo audio on a 3.5 mm mini jack
    1x balanced audio stereo on a 5-pin detachable terminal block
    Maximum Output Level Video: 2.2 Vpp; Audio: Stereo unbalanced 7.9 Vpp, stereo balanced 15.8 Vpp differential (17 dB)
    Bandwidth Video: Out 440 MHz maximum CAT 5 (Rec Out) 150 MHz; Audio: Stereo unbalanced 20 kHz, stereo balanced 20 kHz
    Video Resolution VGA to WUXGA
    Differential Gain XGA: 0.06%
    Differential Phase UXGA: 0.05°
    K-Factor UXGA: <0.05%
    S/N Ratio Video: UXGA 69.5 dB @ 5 MHz, CAT 5 69.1 dB; Audio: Stereo unbalanced 80.8 dB @ 1 KHz, stereo balanced 80.8 dB @ 1 kHz, CAT 5 (Rec Out) 80.1 dB
    Crosstalk All Hostile: Video: UXGA -63.2 dB @ 5 MHz; Audio: Local stereo unbalanced -117.7 dB @ 1 KHz, local stereo balanced -108.8 dB @ 1 kHz
    Volume Control Audio: Stereo unbalanced -116.3 to 21.1 dB; stereo balanced -109.7 to 27.1 dB
    Coupling Video: UXGA-DC, TP Out-DC; Audio: Balanced / unbalanced-In / Out AC
    Audio THD + Noise: Stereo unbalanced 0.026%, stereo balanced 0.01%.
    2nd Harmonic: Stereo unbalanced 0.002%, stereo balanced 0.003%
    Operating Temperature 32 to 13°F (0 to 55°C)
    Storage Temperature -49 to 162°F (-45 to 72°C)
    Humidity 10 to 90%, RHL non-condensing
    Power Consumption 12 VDC 260 mA. When connected to TP-122/N or TP124, 750 mA
    Dimensions (W x D x H) 6.7 x 6.57 x 1.3" (16.9 x 16.7 x 3.2 cm)
    Weight Approximately 2.43 lb (1.1 kg)

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