Gefen 2x2 DPKVM Switch - KVM switch for DisplayPort, USB and Audio



Recommended replacement: 2 Port DisplayPort KVMs
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The Gefen EXT-DPKVM-422 switches two high-definition displays between two DisplayPort equipped computers with audio/video and USB peripherals. With the output utilizing two displays and two USB 2.0 ports, users can switch audio, video and USB for each computer. Access two computers from one workstation without having to use a network. Switch through the front panel "select" button, using the supplied IR remote control, the RS-232 serial port, or the IP control. The 2x2 DPKVM Switch is compatible with all operating systems using DisplayPort and USB.

How It Works
Connect two DisplayPort high-definition displays, USB 2.0 keyboard/mouse, or other USB 2.0 peripherals to the 2x2 DisplayPort KVM Switch output. Connect the DisplayPort, USB and audio ports on both computers to the 2x2 DPKVM Switch input using the supplied cables.

Note: If the source and/or display is not 100% DisplayPort compliant, a protocol-specific protocol adapter will be required in order to connect the source to the Switcher and/or the Switcher to a high-resolution display.

Gefen EXT-DPKVM-422 Backview
Gefen EXT-DPKVM-422 Backview


  • Switches two high-definition displays between two DisplayPort-equipped computers with audio/video and USB peripherals

  • Switches up to 2560 x 1600 resolution

  • Supports RGB and YCbCr color spaces

  • Rack mountable

  • Save space on your desktop

Gefen EXT-DPKVM-422 Diagram
Gefen EXT-DPKVM-422 Diagram

Gefen EXT-DPKVM-422 Specifications:

Width 17.1 in. (43.4 cm.)
Height 1.7 in. (4.3 cm.)
Depth 4.25 in. (10.8 cm.)
Input Connector (4) DisplayPort (from computers)
Output Connector (2) DisplayPort (to display)
Input Connector (2) USB 2.0 Type "B" (from computers)
Output Connector (2) USB 2.0 Type "A" (to keyboard/mouse)
Input Connector (2) 3.5mm analog L/R audio (from computers)
Output Connector (1) 3.5mm analog L/R audio (to speakers or amplifier)
Color Spaces RGB and YCbCr
Maximum Resolution 2560x1600
Question: Is the resolution over both monitors or 2560x1600 for each? What is the refresh rate?
Answer: Yes, 2560x1600 out of both outputs. The refresh rate is whatever is being fed, generally 60hz.

Question: Is this DP 1.2 compatible? Will this work with an MST hub?
Answer: Thank you for your inquiry. Gefen products are DisplayPort 1.1 compliant. As such, we do not believe it will work with a MST hub.

Question: Is this switch "full-DDC" so it will work with two computers running Windows8 so it canpass correct EDID data? ?
Answer: This Gefen switch will have no problem with the EDID data and Windows 8