8 Port 2 User CAT5 KVM Switch


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The Aten KH2508A KVM allows access and control of multiple computers from a single PS/2 or USB KVM console. As many as two operators may simultaneously and independently control of up to eight computers.

Daisy chaining up to 31 additional switches, allows control of a maximum of 504 computers from the original KVM console. The built in auto-sensing feature automatically recognizes the position of each station on the chain, and for easy identification, a seven-segment front panel LED displays that station's position in the chain.

RJ-45 connectors in conjunction with CAT 5e/6 cable connected to PS/2 or USB CPU modules make for a compact, efficient, wiring configuration. Individual CPU modules ensure compatibility with PC, MAC, SUN, and Serial devices and allow the various units to coexist in the same installation.

Access to a particular computer in the installation is easily accomplished by pressing the corresponding front panel port selection switch; entering hotkey combinations from the keyboard; by means of an OSD (On Screen Display) menu system or a convenient Auto Scan function which permits automatic scanning of selected computers.

To increase the service life of your investment the KVMs and CPU modules' firmware can be updated as necessary, simply download the latest update files from our website and use the Firmware Upgrade function to conveniently install them, the KVM and all attached CPU modules including Daisy Chained units will be updated in the same operation.

NOTE: The KH1508A is not compatible with the KH1508 or KH1516

Aten KH2508A Back View

The Aten KH2508A Features:

  • Two KVM consoles independently and simultaneously control up to 8 or 16 directly connected computers
  • Daisy up to 31 additional KH units to support up to 512 servers
  • Superior video resolution - 1600 x 1200 @ 60 Hz up to 30 m and 1280 x 1024 @ 75 Hz up to 40 m
  • Multiplatform support: PC, Mac, Sun, and serial
  • Backup and restore configuration settings to an external flash drive to simplify installation for disaster recovery
  • No software to install - convenient computer selection via graphical on-screen display (OSD) menus
  • Supports two-level user access control (administrator and user)
  • Supports up to 96 user accounts
  • Configure port access rights for users on a port-by-port basis
  • Diversified port operation mode enables flexible computer management - Occupy, Exclusive and Share modes
  • OSD port list automatically expands when stations are added
  • Port names are automatically reconfigured when the station/computer sequence is changed
  • OSD screen automatically adjusts to resolution changes
  • Auto Scan mode enables continuous monitoring of user-selected computers
  • User activity log support
  • Console conversion - any type of KVM console can control any type of computer; mixed combinations (PS/2 & USB) supported on both the KVM console and computer sides
  • USB / PS/2 keyboard and mouse emulation - computers boot even when the KVM console focus is elsewhere
  • Hot pluggable - add or remove components without having to power off the KVM switch
  • Free lifetime firmware upgrades
  • Effortlessly upgrade an entire installation - automatically upgrade all cascaded switches and adapter cables directly from the root station
  • Compact design - rack mounts in only 1U of rack space

The Aten KH2508A Features:

The following hardware components are required for each KVM console:

  • A VGA, SVGA, or MultiSync monitor capable of displaying the highest resolution provided by any computer in the installation
  • Keyboard and mouse (PS/2 or USB)

The following hardware components are required for each computer:

  • VGA, SVGA, or MultiSync video graphics card with an HDB-15 port; or, for Sun legacy systems, a Sun 13W3 video port
  • PS/2 mouse and keyboard ports (6-pin Mini-DIN), or at least one USB port; or, for Sun legacy systems, a Sun style keyboard port (8-pin Mini-DIN)

The Aten KH2508A Package Contents:

  • 1 KH2508A Cat 5 KVM Switch
  • 1 Power Cord
  • 1 Grounding Wire
  • 1 Firmware Upgrade Cable
  • 1 Rack Mount Kit
  • 1 Foot Pad Set (4 pcs.)
  • 1 User Manual
  • 1 Quick Start Guide

The Aten KH2508A Specifications:

Height 1.7 in. (4.32 cm.)
Width 17.2 in. (43.68 cm.)
Depth6.4 in. (16.26 cm.)
Weight6.2 lbs. (2.81 kg.)
Operating Temperature32 - 122 F (0 - 50 C)
Storage Temperature-4 - 140 F ( -20 - 60 C)
Humidity0-80% RH
Consumption60mA-7.2 W -- 24.5 BTU / hr.
Operating Voltage[input] 100-240 VAC; 50/60 Hz; 1A
Computer Connections 
Daisy Chain or Cascading504 maximum [Daisy Chain]
Port SelectionOSD (On Screen Display); Hotkey; Push button
Console Connectors 
Keyboard2x USB Type A F/ 2 x 6-pin Mini-DIN F
Mouse2x USB Type A F/ 2 x 6-pin Mini-DIN F
Monitor2 x HDB-15 F
Flash ROM Upgrade1 x RJ-11
CPU Connectors 
Keyboard, Mouse and Monitor8 x RJ-45
On Line8 (Green)
Selected8 (Orange)
Manual Select2 (Orange)
Power On1 (Blue)
Station ID1 x 2 Digit 7-segment (Orange)
Supported Hardware 
Video Resolution1600 x 1200 @ 60 Hz [130ft] 1280 x 1024 @ 75 Hz (165 ft)
PeripheralsPS/2; USB
Approved Agency TAA

UPC / EAN Barcode icon
UPC 672792400452
EAN 0672792400452