4-Port Dual View Dual-Link DVI KVMP Switch w/ Audio


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IOGEAR's GCS1644 4-Port Dual View DVI KVMP Switch marks a leap in KVM functionality by combining IOGEAR's DynaSync with the widescreen graphics resolution of today's 30+ inch monitors, supporting Dual View / Dual Link DVI, 2560 x 1600 (higher than 1080p HD). Four Dual-View / Dual-Link display computers can be accessed and controlled from a single console running dual-displays!

This unique KVMP can increase efficiency and save equipment cost for applications where high resolution, dual-display large or widescreen monitors are required:

  • CAD (Computer Aided Design) and CAM (Computer Aided Manufacturing)
  • Desktop Publishing / Graphic Design / Video Editing
  • Medical / Surgical / Diagnostic Displays
  • And High-End Gaming, where high and ultra-high video resolution is demanded.

The IOGEAR GCS1644 also features two USB 2.0 peripheral ports for asynchronously sharing USB devices between your computers. A powered USB hub may be attached to the peripheral ports for added functionality. Audio and microphone support makes sharing speakers and a microphone a convenience for the users which serves as an extra value. The IOGEAR's DynaSync* remembers your monitor's ideal resolution and refresh rate (EDID), making it possible to boot all your computers simultaneously, switch back and forth between computers, and still maintain the ideal video settings of the monitor.

The GCS1644 offers an out-of-box solution including all cabling required for "Set-up and Go"!

The IOGEAR GCS1644 Features:

  • Dual View Dual-Link DVI support - Share 2 DVI monitors with a single keyboard and mouse, among 4 computers
  • High resolution - Up to 2560 x 1600
  • 2-port USB 2.0 hub for peripheral sharing
  • Asynchronous hotkey switching between KVM focus, USB peripheral, and Audio ports
  • IOGEAR's DynaSync reads and remembers the monitor's parameters (EDID) so there is no delay or change of video resolution when switching between, or booting computers*
  • Complete keyboard and mouse emulation for error free booting and real-time switching
  • Computer switching via front panel push buttons or hotkeys
  • Supports MAC and Sun keyboard and special keys
  • Firmware upgradeable
  • Plug & Play - no software installation required
  • Buzzer ON/OFF via hotkey
  • Multi OS platform support: Windows Vista¨, Windows¨ 7*,Windows¨ 8, Windows¨ 8.1; Mac OS 9 to 10.x; Mac OS 9 to 10.x; Oracle¨ Solaris; Linux¨
  • All cables included

*IOGEAR's DynaSync provides the EDID support for Windows 7

IOGEAR GCS1644 Diagram

IOGEAR GCS1644 Package Contents:

  • 1 x 4-Port Dual View Dual-Link DVI KVMP Switch
  • 4 x Dual-Link DVI-D KVM Cable
  • 4 x Dual-Link DVI-D Cable
  • 1 x PS/2 to USB Adapter
  • 1 x Firmware Upgrade Cable
  • 1 x Power Adapter
  • 1 x Installation Guide
  • 1 x Warranty Card

The IOGEAR GCS1644 Specifications:

Height 1.75 in. (4.45 cm.)
Width 17 in. ( 43.18 cm.)
Depth6.125 in. (15.55 cm.)
Weight5.8 lbs (2.63 kg.)
Ship Weight14.88 lbs. (6.75 kg.)
Operating Temperature32-122 F (0-50 C)
Storage Temperature-4- 140 F (-20-60 C)
Port SelectionHotkeys or Pushbutton
Video ResolutionSingle Link DVI: 1920x1200; Dual Link DVI: 2650x1600
Supported Hardware 
CPU Connector 
Monitor8 x Dual Link DVI-I Female
Keyboard & Mouse4 x USB Type B Female
Audio4 x Mini Stereo Jack Female (Green)
Microphone4 x Mini Stereo Jack Female (Pink)
Console Connectors 
Monitor2 x Dual Link DVI-I Female
Keyboard1 x USB Type A Female
Mouse1 x USB Type A Female
Audio1 x Mini Stereo Jack Female (Green)
Microphone1 x Mini Stereo Jack Female (Pink)
F/W Upgrade1 x 4-conductor 3.5mm Jack
Port Selection5 x Pushbutton
VoltageDC 5.3V
Approved Agency RoHS

UPC / EAN Barcode icon
UPC 881317502841
EAN 0881317502841
Question: I have a project where I need to Mirror the display of the Monitor which is connected to a DVR to a second Monitor located around 50m from the first Monitor. Can you please recommend a suitable device and provide configuration and technical details with pricing. Thanks
Answer: Thank you for your inquiry. There are a number of options available for splitting and extending a video signal. The right solution will depend on a number of factors like the type of video signal (VGA, DVI, HDMI etc.), the resolution required, (1024x768, 1080p, etc.), additional signal transportation, (USB, audio, IR, RS232 etc.) and others.

One possible solution, depending on the video signal and resolution required, might be the ST-C5V-300 - CAT5 VGA extender from NTI. This device will transport a 1600x1200 VGA signal up to 150 feet over standard CAT5e cable and has a local port. An application diagram, specifications and link to the product manual can be located here: https://www.kvm-switches-online.com/st-c5v-300.html.

For additional recommendations, please give us a call at 1-877-586-6654 or contact us via our online chat feature to discuss your project in greater detail.

Question: Hi I want to use 2 monitors and 2 computers with Keyboard and Mouse. However, I would like to use each computer across 2 monitors using the extended desktop available on Windows 8. So each of my computer uses both monitors. Is this possible with this device?
Answer: Hello, and thank you for your inquiry. Yes, this device will allow you to share a single keyboard, mouse and dual DVI monitors with 2 computers. Please note however, it does require that the attached computers have two DVI video ports apiece. Also, the keyboard, mouse and two monitors are only available for the computer that has focus.

Question: Can you tell me if you meet te following spec and if you have the documentation to certify the approval? secure EAL4+ National Information Assurance Partnership (NIAP) Common Criteria Certification
Answer: Thank you for your inquiry. This particular KVM Switch does not meet the requirements for National Information Assurance Partnership (NIAP) Common Criteria Certification.

A listing of secure KVM switches can be found here: https://www.kvm-switches-online.com/secure-kvm.html. Some are evaluated to EAL2+, but many are evaluated to EAL4+. For the most part, the manufacturers can provide documentation to certify the approval upon request.

A listing of 4-port models can be found here: https://www.kvm-switches-online.com/secure-4-port.html.

A dual-monitor, dual-link 4-port secure DVI KVM with audio from Avocent can be viewed here: https://www.kvm-switches-online.com/sc540.html.