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ADDERLink ALIF2112T Dual Link/Dual Head DVI Extender
Adder Technology

ADDERLink ALIF2112T

Expert rating8 / 10

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Manufacturer: Adder Technology Last updated: 2026-10-09

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ADDERLink ALIF2112T Review

The ADDERLink ALIF2112T is a dual-link, dual-head DVI extender transmitter supporting two monitors from a single network-routed unit.

This is built specifically for dual-monitor workstations, trading off some of ALIF1002P's single-link simplicity for the ability to extend two DVI displays from one transmitter, which matters a lot if your remote users run dual-monitor setups.

Two Monitors From One Transmitter

The ALIF2112T's dual-head design extends two independent DVI displays over the network from a single unit, avoiding the need to buy and manage two separate single-head transmitters for a dual-monitor workstation.

Dual-Link for Higher Resolution Per Head

Dual-link DVI support means each of the two heads can push higher resolution than single-link DVI allows, useful for CAD or financial-trading style dual-monitor setups that need more than basic 1080p per display.

Comparison to Alternatives

Adder's own single-head ALIF1002P pair costs more per port if two full single-head kits are purchased to cover two monitors, making the ALIF2112T the more efficient choice for genuine dual-monitor needs. Emerald's DisplayPort-based EMD4000T (also in this catalog) covers single-head 4K instead of dual-head DVI.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8 / 10

An efficient dual-head DVI extender for network-routed dual-monitor workstations, a better fit than stacking two single-head units.

Best for

  • Dual-monitor workstations needing both displays extended over a network
  • CAD, trading, or design setups requiring higher per-monitor resolution via dual-link DVI
  • Facilities standardizing on Adder's ADDERLink Infinity ecosystem for multi-monitor rooms

Not for

  • Single-monitor workstations, where the single-head ALIF1002P is more cost-effective
  • HDMI or DisplayPort-native workstations
  • Budget-limited deployments better served by a simple point-to-point extender

Specifications

What these specs mean
Capability Score
6.9/10

How much this extender can do compared with other KVM extenders, rated from its specifications.

Identity

BrandAdder
Model NumberALIF2112T

Topology

Computers Supported1 computers
Displays Per Computer2 displays
Total Video Inputs2
Video Path TypeKVM over IP
KVM SegmentExtender

Video & Features

Video StandardDVI (Dual-Link)
Max Resolution2560x1600 @ 60Hz
Audio SupportYes

Video interface

Video ConnectorDVI
Video Interface VersionDVI

Per display capability

Max Resolution Single Display2560x1600
Max Refresh At Max Resolution60 Hz
Max Resolution All Displays Active1920x1200
Max Refresh All Displays Active60 Hz

USB peripheral switching

USB Switching SpeedUSB 2.0

Audio

Analog Audio JacksYes

In the box and price

Price2012.10 USD

FAQs

What are the key specifications of the ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender)?

Key specs for the ADDERLink ALIF2112T: Max Resolution 2560x1600 @ 60Hz, Max Refresh At Max Resolution 60 Hz, Max Resolution All Displays Active 1920x1200, Max Resolution Per Display 2560x1600, Connection Type KVM-over-IP Transmitter, Dual-Link / Dual-Head DVI, Audio Support Yes.

Who is the ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender) best suited to?

Best suited to: Dual-monitor workstations needing both displays extended over a network; CAD, trading, or design setups requiring higher per-monitor resolution via dual-link DVI; Facilities standardizing on Adder's ADDERLink Infinity ecosystem for multi-monitor rooms.

What are the drawbacks of the ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender)?

Not the best fit for: Single-monitor workstations, where the single-head ALIF1002P is more cost-effective; HDMI or DisplayPort-native workstations; Budget-limited deployments better served by a simple point-to-point extender.

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