Gefen CAT5 1000 USB KVM Extender



Recommended replacement: Gefen EXT-CAT5-1600A
Alternative options: Contact Us

The Gefen EXT-CAT5-1000 requires just one CAT5 cable to transmit video, audio and control signals to the remote workstation. It essentially bundles the signals together before, during and after transmission so that cabling is reduced while reliable signal transmission is achieved. The EXT-CAT5-1000 is the ideal solution for anyone who desires an effective method to extend their workstation anywhere within 330-feet from the computer.  The CAT5-1000 works with all CRT and LCD computer monitors as well as USB-equipped keyboards and mice (Mac or PC).

Gefen EXT-CAT5-1000 Receiver & Sender Backside

Gefen EXT-CAT5-1000 Receiver & Sender Backside

How the Gefen EXT-CAT5-1000 works

The CAT5-1000 utilizes a sender and receiver methodology to connect the extended workstation to the computer. Simply connect the sender unit to your computer using the cables provided. Then connect the receiver unit to the computer’s keyboard, monitor and mouse at the remote location. CAT5 cable(s), sold separately, then connect the sender unit to the receiver unit. Both the sender and the receiver units must be connected to a power supply. When fully powered and operational, the units efficiently extend video, audio and control signals.

Gefen EXT-CAT5-1000 Features:

  • Extends any VGA display up to 330 feet
  • Maintains 1920 x 1200 resolution video
  • Extends USB 1.1 compliant devices up to 330 feet
  • Audio is extended for multimedia applications
  • Eliminates computer noise where you work
  • Uses one CAT-5e cable
  • Rackmountable
  • Installs in minutes
  • Local monitor out

Gefen EXT-CAT5-1000 Package Includes:

  • Sender Unit
  • Receiver Unit
  • One 6ft VGA cable (PC/Black)
  • One 6ft USB cable
  • One 6ft Audio cable
  • Two 5VDC Transformers

Gefen EXT-CAT5-1000 Specifications:

Height 1.75 in. (
Width 8 in. (
Depth 4.6 in. (
Weight 8 lbs. (3.62 kg.)
Supply 5 VDC
Consumption per unit 20 Watts (max.)
USB Input/Output type B / type A
Link Connector RJ-45
Input Video Signal 1.2 Volts p-p
Input Sync Signal 5 Volts p-p (TTL)
Frequency Range  
Horizontal 15 - 70 KHz
Vertical 30 - 170 Hz
Video Amplifier Bandwidth 350 MHz
Video In HD-15
Brightness Control 25 to 450 FT
Question: We would like to order onse set of Gefen EXT-CAT5-1000 KVM Extender and ship to Hong Kong, please provide the link for on-line ordering.
Answer: Thank you for you inquiry. Here is a link to information regarding international orders: Orders

Question: How many of these do you have in stock?
Answer: Thank you for your inquiry. For all stocking related questions, please give us a call at 1-877-586-6654.

Question: Can the Gefen CAT5 1000 also transport a single audio path, or does audio always only work in conjunction with video?
Answer: Thank you for your inquiry. Since the audio has its own input and output, we would think it should transport just the audio.

However, it is possible that a video signal is required to operate properly and/or access an OSD menu. Without one of these discontinued units to test, we could not say for sure.

We were able to locate a copy of the manual. It can be accessed here:

The manufacturer, Gefen, my also have more information available on this disconnected extender system. You can reach the manufacturer here:

You may also be interested in Gefen's dedicated audio extenders. An analog version can be found here:, and a digital version can be found here: