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Manufacturer: Adder Last updated: September 12, 2026
ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) Review
The ADDERLink ALIF2112T is a dual-link, dual-head DVI extender transmitter supporting two monitors from a single network-routed unit, priced at $2,012.10.
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.
Specifications
Design
| Port Count | 1 |
|---|
Topology
| Computers Supported | 1 computers |
|---|---|
| Displays Per Computer | 2 displays |
| Total Video Inputs | 2 |
| Video Path Type | KVM over IP |
| KVM Segment | Extender |
Video & Features
| Video Standard | DVI (Dual-Link) |
|---|---|
| Max Resolution | 2560x1600 @ 60Hz |
| Audio Support | Yes |
Video interface
| Video Connector | DVI |
|---|---|
| Video Interface Version | DVI |
Per display capability
| Max Refresh At Max Resolution | 60 Hz |
|---|---|
| Max Resolution All Displays Active | 1920x1200 |
| Max Refresh All Displays Active | 60 Hz |
USB peripheral switching
| USB Switching Speed | USB 2.0 |
|---|
Audio
| Analog Audio Jacks | Yes |
|---|
In the box and price
| Price | 2012.10 USD |
|---|
| Brand | Adder |
|---|---|
| Model | ALIF2112T |
| Connection Type | KVM-over-IP Transmitter, Dual-Link / Dual-Head DVI |
| Network Type | Gigabit Ethernet (IP-routed matrix capable) |
| Source URL | https://www.adder.com/en/kvm-solutions/adderlink-infinity-dual-2112 |
Expert Review
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
FAQs
What are the key specifications of the ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10)?
The ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) is a KVM switch from Adder. Key specs: Connection Type KVM-over-IP Transmitter — Dual-Link, Dual-Head DVI, Port Count 2 (dual-head transmitter — supports two monitors), Video Standard DVI (Dual-Link), Max Resolution 2560x1600 per head, Network Type Gigabit Ethernet (IP-routed matrix capable).
Who is the ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) best suited to?
It suits 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 / $2,012.10)?
It is a poor 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.
Compare and read more
- Adder AdderView PRO AV4PRO (4-8 Computers / 1-4 Monitors / DVI-VGA / Modular Multi-Head) vs ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10)
- ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) vs Adder AV4PRO-DVI-QUAD (4-Port / 4 Monitors / DVI Quad-Head KVM / $1955.70, was $2173.00)
- ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) vs Adder AV4PRO-DP (4-Port DisplayPort KVM Switch / USB 2.0 / Audio / $738.00, was $820.00)
- ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) vs Adder AV4PRO-DVI-TRI (4-Port / 3 Monitors / DVI Triple-Head KVM / $1520.10, was $1689.00)
- ADDERLink ALIF2112T (Dual Link/Dual Head DVI Extender / $2,012.10) vs Adder AV4PRO-DVI-DUAL (4-Port Dual-Head DVI KVM Switch / USB / Audio / $1084.50)