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USB Extenders

A high performance dual-head IP KVM matrix solution with support for 5K video and multigigabit Ethernet connectivity.

Product Feature

  • Dual-head 5K screens over a single link: The ALIF4000 can deliver two 5K screens over a single link.
  • Multigigabit Ethernet support: Multirate (1/2.5/5/10) GbE support enables premium video performance over 5Gb/s copper links using 100m of standard CAT6 cable.
  • Support for 1GbE: Integrated 1GbE ports enable easy delivery of 4K/60 video over ubiquitous 1Gb/s copper links using 100m of standard CAT5e or CAT6 cable.
  • Support for 5K Resolutions: 5K video resolutions supported for high resolution and ultra-wide video applications (5120x1440@60Hz or 5120x2880@30Hz).
  • Backwards compatibility: The ALIF4000 can integrate seamlessly into your existing ADDERLink INFINITY setup, replacing or working in conjunction with your existing ALIF endpoints
  • Digital KVM matrix: By the addition of ADDERLink INFINITY Management system (A.I.M.) you can turn multiple point to point extenders into a matrix system that allows any workstation to connect to any computer connected to the network. See the A.I.M. datasheet for details
  • Audio capability: Multi-channel digital audio, via DisplayPort™, provides a high-quality immersive sound experience.
  • EDID management: The system has intelligent EDID management to either allow the true characteristics of the monitor to be passed back to the computer, or controlled resolutions to be imposed
  • Plug and Play: The ADDERLink INFINITY range is delivered in a zero config state so they work as soon as they are connected, without the need for drivers or software
  • USB True Emulation: USB2.0 enables connection to any USB human interface device from mice and keyboards through to graphics tablets, jog shuttles, joysticks and 3D explorers

The ADDERLink™ INFINITY 4000 Series (ALIF4000) is the world's first dual-head, high performance 5K IP KVM extender over a single 

The ALIF4000 is fully compatible with the existing INFINITY range, and supported by the trusted ADDERLink INFINITY Manager (AIM), the 
ALIF4000 can be used as a point-to-point extender or easily integrated into a wider matrix system; enabling KVM users to migrate to 
5K without the need to rip and replace.

  • Dual-head 5K, video, audio and USB over a single fiber connection
  • Pixel-perfect image quality
  • Multi-channel digital audio via DisplayPort
  • Adder's USB True Emulation for fast switching
  • Backwards compatible with existing ADDERLink INFINITY infrastructure
  • Plug and play 


4 ports of USB2.0 with USB True Emulation 
to support keyboard, mouse and touch. 
One port of transparent high speed USB2.0 
USB device seen as: 7 or 13 port hub

Max video resolution

Supports resolutions up to 5120x2880 including 
UHD or DCI and refresh rates up to 240Hz


Analog Line in/out 2 channel 16bit 48KHz 
1V RMS in/1V RMS out 

2x DisplayPort™ Audio in either 2, 6 or 
8 channels linear PCM


2x 10GbE (no 10/100/1000 support on fiber) via SFP.
2x 10,5,2.5 and 1GbE when using SFPCATX-MR SFP. 
2x 1GbE (no 10/100 support) via CATX ports.


Local Unit - Transmitter (TX) 
Computer: 2x DisplayPort™, 2x USB type B, 
2x 3.5mm audio jack sockets, 1x DB9 socket. 
Ethernet: 2x 8p8c (RJ45), 2x SFP+ cages. 
Power: 3 pin Kycon socket.

Remote Unit - Receiver (RX) 
Desk: 2x DisplayPort™, 5x USB type A, 
2x 3.5mm audio jack sockets, 1x 3.5mm 
SPDIF socket 
Ethernet: 2x 8p8c (RJ45), 2x SFP+ cages 
Power: 3 pin Kycon socket 

Physical Dimensions

(L)210mm /8.3”x(W)215mm/8.5”x 
Weight: 1.8kg/4 lbs. 


Aluminum and steel construction


External power: 12VDC, 5A 
Typical power consumption: 20W

Operating temperature

Operating temperature: 0 to 40o C/32 to 104o F 

Storage temperature: 0 to 40o C/32 to 104o F 

Storage and operating relative humidity: 
10-90% non-condensing 

Altitude: < 2000m

Packing Box

Dimensions: (L) 285mm /11.2-inch (W) 
245mm/9.6inch (D) 145mm/5.7inch 

Weight: 2.5kg / 5.5lb


CE and FCC: See the compliance web page 
for the full list

Mean Time Between Failure

ALIF4021T 159,000 hrs. 

ALIF4021R 165,000 hrs.

Telcordia SR332 Issue 4 March 2016 
Calculated @55o C

Name Type Version Release Date
ADDERLink INFINITY 4000 Datasheet Datasheet V2.0 04 August 2020

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