The CS84U PS/2-USB KVM Switch is a desktop control unit that allows users to access four computers from a single KVM console (PS/2 or USB keyboard and mouse, and VGA monitor). In addition, CS84U comes with ATEN's new Video DynaSync™ technology, which eliminates boot-up display problems and optimizes resolution.

Setup is fast and easy; simply plug cables into their appropriate ports. There is no software to configure, no installation routines, and no incompatibility problems. Since the CS84U intercepts keyboard input directly, it will work on multiple computing platforms.

Compatible Accessories

KVM Cables

  • 2L-5201U - Length: 1.2m
  • 2L-5202U - Length: 1.8m
  • 2L-5203U - Length: 3m
  • 2L-5205U - Length: 5m
  • 2L-5301UP - Length: 1.2m
  • 2L-5302UP - Length: 1.8m
  • 2L-5303UP - Length: 3m

Compatible Products

KVM Extenders

  • CE770
  • CE750
  • CE250A

Package Contents

  • 1x CS84U PS/2-USB KVM Switch
  • 4x Custom KVM Cable Sets
  • 1x User Instructions

Patent No.

US 6464197 , US 6564275


  • One PS/2-USB VGA console controls four VGA interface computers.
  • Dual Interface - supports computers with PS/2 or USB keyboards and mice
  • Computer selection via front panel pushbuttons, hotkeys, and mouse
  • Multiplatform support - Windows, Linux, Mac, and Sun
  • Superior video quality - 2048 x 1536; DDC2B
  • Video DynaSync - Exclusive ATEN technology eliminates bootup display problems and optimizes resolution when switching between ports
  • Console mouse port emulation/bypass feature supports most mouse drivers and multifunction mice
  • Complete keyboard emulation for error-free booting
  • Mac/Sun keyboard support and emulation*
  • Multilingual keyboard mapping - supports English, Japanese, and French keyboards
  • Gaming keyboard support
  • Auto Scan Mode for monitoring all computers
  • Firmware upgradable
  • Non-powered

    * 1. PC keyboard combinations emulate Mac/Sun keyboards
    2. Mac/Sun keyboard work only with their own computers


CS84U Diagram


Computer Connections


Port Selection

Hotkey, Pushbutton, USB Mouse


Console Ports

2 x USB Type A Female (Black)

1 x 6-pin Mini-DIN Female (Purple)

1 x 6-pin Mini-DIN Female (Green)

1 x HDB-15 Female (Blue)

KVM Ports

4 x SPHD-18 Female (Yellow)


1 x DC Jack



4 x Pushbutton



4 (Orange)


4 (Green)


Keyboard / Mouse



2048 x 1536 @ 60 Hz; DDC2B

Scan Interval

3, 5, 10, 20 secs. (5 secs. default)

Power Consumption

DC 5V, 1.2W


Operating Temperature

0 - 50C

Storage Temperature

-20 - 60C


0-80% RH, Non-condensing

Physical Properties




0.77 kg ( 1.7 lb )

Dimensions (L x W x H)

21.00 x 8.80 x 5.55 cm 

(8.27 x 3.46 x 2.19 in.)

* The specification and pictures are subject to change without notice.

* All trademarks and logos are the properties of their respective holders.

No additional files, specification sheets, guides or documentation found for product.

Warranty: 12 Month Return To Base

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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