Adder Technology

Adder AV4PRO-DVI-DUAL

Expert rating7.9 / 10

Computers:: 4
Video:: DVI (dual-head)
Max Resolution:: 2560x1600 @ 60Hz
USB:: USB 2.0
Audio:: Yes

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Manufacturer: Adder Technology Last updated: 2026-09-12

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Adder AV4PRO-DVI-DUAL Review

Adder AV4PRO-DVI-DUAL 4-port dual-head DVI KVM switch USB audio

Gives dual-monitor DVI trading and control-room desks four-way switching with matched USB and audio, so an operator with two screens can jump between four DVI hosts without touching a cable.

Dual-Head DVI Console Consolidation

The AV4PRO-DVI-DUAL is aimed at desks running two DVI monitors that need to reach four separate systems, common in trading, dispatch and process-control environments still on digital DVI rather than DisplayPort.

Comparison to Alternatives

It mirrors the AV4PRO-VGA-Dual's layout on digital DVI instead of analog VGA, and commands a higher price for the cleaner digital signal path. Against SmartAVI's SM-DPN-4D-S, which covers the same 4-port dual-head niche on DisplayPort, the AV4PRO-DVI-DUAL is the pick when the desk's monitors and sources are still DVI.

Our verdict

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

Expert rating7.9 / 10

A solid dual-head DVI option for trading and control desks; DisplayPort alternatives are preferable for new builds.

Best for

Dual-monitor DVI trading desks
Dispatch and process-control operators
Four-system DVI consolidation

Not for

DisplayPort or HDMI-native setups
Single-monitor users
4K resolution requirements

Specifications

What these specs mean

Capability Score

4.5/10

How much this switch can do compared with other desk KVM switches, rated from its specifications.

Identity

Brand	Adder
Model Number	AV4PRO-DVI-DUAL
Switching Method	Front-panel buttons, keyboard hotkeys, three-button mouse, optional RC4 remote

Topology

Computers Supported	4 computers
Displays Per Computer	2 displays
Total Video Inputs	8
Total Video Outputs	2
Video Path Type	Independent heads
KVM Segment	Desk

Video & Features

Video Standard	DVI (dual-head)
Max Resolution	2560x1600 @ 60Hz
USB Hub Ports	2
Audio Support	Yes

Video interface

Video Connector	DVI
Video Interface Version	DVI

Per display capability

Max Resolution Single Display	2560x1600
Max Refresh At Max Resolution	60 Hz

USB peripheral switching

USB Switching Speed	USB 2.0
Shared USB Ports	2 ports
Dedicated HID Ports	2 ports
HID Emulation	Yes

Switching control

Button Switching	Yes
Hotkey Switching	Yes
Mouse Or Cursor Switching	Yes

Audio

Analog Audio Jacks	Yes

Physical and power

Rack Mountable	Yes
External Power Required	Yes

In the box and price

Price	1084.50 USD

FAQs

What are the key specifications of the Adder AV4PRO-DVI-DUAL (4-Port Dual-Head DVI KVM Switch / USB / Audio)?

Key specs for the Adder AV4PRO-DVI-DUAL: Shared USB Ports 2 ports, Dedicated HID Ports 2 ports, Max Resolution 2560x1600 @ 60Hz, Max Refresh At Max Resolution 60 Hz, Max Resolution Per Display 2560x1600, Audio Support Yes.

Who is the Adder AV4PRO-DVI-DUAL (4-Port Dual-Head DVI KVM Switch / USB / Audio) best suited to?

Best suited to: Dual-monitor DVI trading desks; Dispatch and process-control operators; Four-system DVI consolidation.

What are the drawbacks of the Adder AV4PRO-DVI-DUAL (4-Port Dual-Head DVI KVM Switch / USB / Audio)?

Not the best fit for: DisplayPort or HDMI-native setups; Single-monitor users; 4K resolution requirements.