Adder AdderLink INFINITY Dual 2020 KVM Extender (Transmitter only)


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Series: INFINITY Dual 2020
Unit: ALIF2020T Transmitter
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ADDERLink Infinity ALIF2020T is a high performance Dual-link or Dual-monitor DVI, USB and Audio Transmitter for the Adder Infinity Digital KVM Extension / Matrix solution. ALIF2020T transmitter requires at least one ALIF2122R receiver to operate.

Part of the ADDERLink INFINITY series, the ADDERLink Infinity Dual 2020 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. Configurable as a single link or dual head at a maximum of 1920 x 1200 at 60Hz, this extender provides an 'at-the-PC' experience up to 6.21mi (10km) via interchangeable CatX and Fiber SFP modules. This KVM extender can be used as a point-to-point extender, or integrated into a wider matrix system when combined with the ADDERLink INFINITY Manager (A.I.M.).

Image of rear ports of the Adder ALIF2020T KVM Extender
ALIF2020T Transmitter Rear

See Detailed Layout

  • Dual-head (dual-monitor), single-link DVI configuration
  • 1920 x 1200 @ 60Hz (24 bits per color) maximum resolution with minimal lag
  • Flexible solution: from point-to-point extender to an infinitely extensible matrix used for IT administration or broadcast
  • Unlimited extension via swappable SFP Modules:
    • 330ft (100m) extension distance on single CATx
    • 1,640ft (500m) to 6.21mi (10km) extension over fiber
    • Unlimited extension via IP network or by chaining units
  • USB 2.0 with Emulation and class control: for faster keyboard and mouse switching plus support for USB mass storage, tablet, touch and more
  • Delivers uncompressed spatially-lossless video & digital stereo audio with option to compress video to minimize bandwidth usage
  • Built-in security measures: compliant with universal enterprise grade security standards (AES 256 bit encryption and RSA 2048 bit public key authentication)

Adder ALIF2020T Features

  • Adder ALIF2020T Use Case

    Infinite Flexibility

    With the addition of AdderLink Infinity management system (A.I.M.), you can turn multiple point-to-point extenders into a truly scalable digital KVM matrix system that allows any workstation to link with any computer connected to the network.

    • Point-to-point extension (local / over-IP)
    • AV / KVM Switch multi-point matrix (over-IP)
    • Sharing a single target (over-IP)
    • Multicasting to many receivers (over-IP)

    Learn more

  • Adder ALIF2020T Perfect digital IP video broadcast, real time control

    Perfect digital video, real time control

    Uncompressed video extension and pixel perfect digital video up to 24 bits per color at a maximum of 1920x1200 over 60hz with real time control. Using a spatially-lossless encoding system, with 1:1 pixel mapping, AdderLink Infinity provides pixel perfect and color accurate video with no artefacts. The digital video you receive is the same as the digital video leaving the remote computer.

  • Adder Multimode SFP Module

    Single CATx or Fiber cable with immunity from interference

    The AdderLink Infinity units were designed from the outset around a highly robust signaling method. This vital core asset is what gives you the freedom to use the full variety of cable links that you typically find within an average structured cabling system. The result is that you can achieve reliable links, regardless of whether the cables are CAT5e, CAT6 or CAT7. The AdderLink Infinity dual 2020 also offers the option of up to 6.21mi (10km) distances with fiber.
  • Adder ALIF2020T Extension Over IP Diagram

    Unlimited extension distances

    Extension distance is not limited to a single 330 foot (100 meter) cable length - If you need to extend further, simply add a 1GbE network device to achieve an additional 330 feet (100 meters). This can be repeated many times. The units are also fitted with SFP cages to accept fiber optic transceivers which enable much greater extension distances.

  • Adder ALIF2020T USB 2.0 with emulation and class control

    USB 2.0 with emulation and class control

    Enables connection of USB devices from mice and keyboards through to graphics tablets, jog shuttles, joysticks and 3D explorers, alongside mass storage devices. True USB Emulation Technology allows for faster keyboard and mouse switching. For applications where security is of high importance, the system has the ability to disable the use of non-HID devices, meaning there is no need to physically block USB ports to prevent the use of mass storage devices.

  • Adder ALIF2020T Enterprise-grade security

    Enterprise-grade security

    Adder Infinity units have built-in security measures compliant with universal enterprise grade security standards inlcuding AES 256 bit encryption and RSA 2048 bit public key authentication.

  • Adder ALIF2020T EDID Management - Ensure Perfect Match Between Source & Display

    Intelligent EDID management

    Intelligent EDID management allows the true characteristics of the monitor to be passed back to the computer. This ensures perfect video display without the additional configuration.

  • Adder ALIF2020T Redundant network

    Redundant network operation

    The Adder Infinity Dual 2020 units are able to detect whether the network is in operation and can automatically change to its second network port if it detects a failure

  • Adder ALIF2020T - Mac + Dithered Video Support

    Support for MacPro (Dithered Video)

    Some graphics cards use a technique called dithering to give the appearance of a deeper color depth than is actually the case. As a result, dithering can significantly increase the normal video data rates. ALIF2020T has a feature called Magic Eye which supports dithering without allowing it to degrade overall link performance.

  • Adder ALIF2020T Plug and Play

    Plug and Play

    AdderLink Infinity extender devices are delivered in a zero configuration state so you can plug them in and start working on them straight away. There is no need for drivers or software to be installed.

  • Adder ALIF2020T Mounting

    Flexible mounting options

    Adder Infinity Dual 2020 units can be rack mounted (1 unit in 1U with RMK4S, or 2 units side-by-side in 1U with RMK4D-R2), left on a desktop, wall mounted (RMKV4), or attached to the back of your monitor using a VESA mounting carriage (RMKV4).

ALIF2020T Package Contents

Adder ALIF2020T Package Contents

  1. (1) ALIF2020T Transmitter
  2. (1) 6ft Single link DVI-D to DVI-D video cable
  3. (1) 6ft Combined DVI-D and USB cable
  4. (2) 6.6ft Audio cable (3.5mm stereo jacks)
  5. (1) Power adapter (20W) and country-specific power cord
  6. (4) Self-adhesive rubber feet
  7. (1) Quick start guide and Safety document
  8. (1) 2-Year Limited Warranty & Lifetime World Class Support

Adder ALIF2020T Specifications

1.76 in. (44 mm.)
7.92 in. (198 mm.)
6 in. (150 mm.)
2.7 lbs. (1.1 kg.)
Operating Temperature
0° to 40° / 32° to 104°
Operating Voltage
5VDC 20W output from power adapter
Power Frequency
100-240VAC 50/60Hz
2.5mm DC jack (power adapter included) 0.8A, input to power adapter
Supported Hardware
ComputersAll computers with DVI-D, USB, audio, RS232 - requirement dependent
VideoThe system supports two Single Link DVI-D resolutions to a maximum of 1920 x 1200 @ 60Hz
Transmitter Connections2 x DVI-D, audio 3.5mm in, audio 3.5mm out, USB type B, RS232 9-pin D-type 1 x 8p8c and 1 x SFP for AdderLink Infinity network connections.
USB, Audio, RS232 - requirement dependent
Approved Agency
Tx Connections
DVI-D x 2, Audio 3.5mm in, Audio 3.5mm out, USB type B, RS232 9 pin D-Type

This part is also known as Adder ALIF2020T-US, ALIF 2020T, and ALIF-2020T.

Question: I need to know the difference between part # ALIF2002T-US and # ALIF-2020T-US?
Answer: Thank you for your inquiry,

The difference between the Adder ALIF2002T (Infinity Dual Transmitter) and the ALIF2020T (Infinity Dual 2020 Transmitter) part numbers is that the ALIF2002T supports Dual Monitor single-link video (up to 1920x1200 @ 60Hz resolution per head) or Single Monitor dual-link DVI video (up to 2K @ 60Hz resolution), while the ALIF2020T only supports Dual Monitor single-link DVI video (up to 1920x1200 @ 60Hz resolution per head) or Single Monitor single-link DVI video (up to 1920x1200 @ 60Hz resolution).

Please let us know if you have any further questions regarding the differences or features of Adder Infinity series.