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



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

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 

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Product codes

Product Features

  • 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


Approvals / Compliance

  • CE
  • FCC

See the compliance section for the full list


USB: 4 ports of USB2.0 of USB True Emulation to support keyboard, mouse and touch
USB device seen as: 7 or 13 port hub
Ethernet: 2x 10GbE (No 10 / 100 / 1000 support on fiber) via SFP
2x 10,5,2.5 and 1GbE when using SFP-CATX-MR SFP.
2x 1GbE (no 10/100 support) via CATX ports.

Operating/storage conditions

Operating temperature: 0 to 40ºC  / 32 to 104ºF
Storage temperature: 0 to 40ºC / 32 to 140ºF
Storage and operating relative humidity: 10-90% non-condensing
Altitude: < 2000m


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


Dimensions: (L) 210mm /8.3” x (W) 215mm/8.5” x (D) 40mm/1.6”
Weight: 1.8kg /4 lb


Aluminium and steel construction

Connectors - Local Unit (TX)

Computer: 2x DisplayPortTM, 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.

Connectors - Remote Unit (RX)

Desk: 2x DisplayPortTM, 5x USB type A, 2x 3.5mm audio jack sockets, 1x 3.5mm SPDIF socket.
Ethernet: 1 x 8p8c (RJ45), 2 x SFP+ cages
Power: 3 pin Kycon socket

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

Packing Box

Dimensions: (L) 285mm / 11.2-inch (W) 245mm / 9.6inch (D) 145mm/5.7inch Weight: 2.5kg / 5.5lb

Associated products


Part of the ADDERLink™ INFINITY range, the ADDERLink™ INFINITY Manager (AIM) enables the user to centrally coordinate and manage the transmitter and receiver units, and facilitate remote user access to host computers. Using the AIM, an administrator can configure user access rights, gather a full audit trail all through an intuitive, multilingual user interface.


The ADDERLink™ INFINITY 100T (ALIF100T) is a Zero U™, high performance IP KVM (Keyboard, Video, Mouse) transmitter that enables the use of standard IT infrastructure to extend computers away from the user environment.


As part of the ADDERLink™ INFINITY range, ADDERLink INFINITY 1002 is a high performance KVM extender that enables you to locate your critical computing hardware in a secure and temperature controlled environment, isolated from the user work station. Configurable as a single head or single link, this extender provides pixel perfect video with minimal lag across a distance of up to 10km.


Part of the ADDERLink™ INFINITY range, the ADDERLink INFINITY Dual is a high performance KVM solution that enables you to locate your critical computing hardware in a secure and temperature controlled environment, isolated from the user work station.


Part of the ADDERLink™ INFINITY range, the ADDERLink™ INFINITY Dual 2020 is a high performance KVM solution that enables you to isolate critical computing hardware in a secure and temperature controlled environment.


Part of the ADDERLink INFINITY range, the ADDERLink INFINITY Dual 2112T is a high performance KVM solution that enables you to isolate your critical computing hardware  from users. Configurable as a dual link or dual head, this extender serves pixel perfect video across distances up to 10km with no loss of compression and minimal lag.


The ADDER CCS-PRO4 Command and Control switch enables users to interact with up to four computers using a single mouse and keyboard. The operator can simply move the mouse cursor across screen borders to instantly select the computer they need to control providing the experience of a single desktop, saving both time and desk space.


The ADDER CCS-PRO8 is a Command and Control Switch which enables users to interact with up to eight computers using a single keyboard and mouse.

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Where to buy

Adder products are purchasable through our key technology partners. You can find a partners on our where to buy page.

Where to buy
What's in the box

ALIF4021R-XX: ALIF4000 Receiver

  • 1x PSU cable
  • 1x IEC cable

ALIF4021T-XX: ALIF4000 Transmitter

  • 2x DP cable. 2m
  • 1x USB cable.
  • 2m 2x Audio cables. 2m 1x PSU and IEC lead
Ordering information

ALIF4021T-XX: ALIF 4000 Transmitter (Tx)

ALIF4021R-XX: ALIF4000 Receiver (Rx)

XX = Mains Lead Country Code:

UK = United Kingdom

US = United States

EURO = Europe

AUS = Australia

JP = Japan

CN = China


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