Adder Technology

Adder AVS-1124

Expert rating8.3 / 10

Computers:: 4
Video:: DVI-D in, HDMI out
Output:: 3840x2160 @ 30Hz multi-view
Certification:: NIAP PP 4.0

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

Adder AVS-1124 Review

Adder AVS-1124 4-port secure multi-viewer KVM, DVI-D inputs, HDMI 4K30 output, NIAP PP 4.0, control room

A secure multi-viewer KVM built for control rooms that need to view and control four DVI-D sources on a shared HDMI display without dropping frames, backed by NIAP PP 4.0 certification.

Built for Mission-Critical Rooms

The AVS-1124 targets broadcast, security operations and utility control rooms where switching has to be silent and instant. Its front end accepts four DVI-D sources and composites them onto HDMI outputs at up to 3840x2160 at 30Hz.

Mouse-Driven Switching

Operators switch channels (KVM plus audio) by holding Ctrl and moving the mouse across the screen border, so control follows the source window being worked in.

Comparison to Alternatives

Where Adder's own AV4PRO-DP is a leaner desktop switch for a single operator, the AVS-1124 is priced and built for secure shared-room deployments. Against Vertiv's SC920DPH-400 secure switch, both are built around secure data isolation; the AVS-1124 adds multi-viewer display of all four DVI sources at once.

Our verdict

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

Expert rating8.3 / 10

A premium, integration-ready video switch for control rooms that need multi-format flexibility and remote control, not a fit for single-desk budgets.

Best for

Broadcast and security control rooms
Facilities needing RS232/IP automation integration
Mixed DisplayPort/HDMI/DVI source environments

Not for

Single-user home office setups
Budget-constrained small offices
Simple two-PC desktop switching

Specifications

What these specs mean

Capability Score

7.0/10

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

Identity

Brand	Adder
Model Number	AVS-1124
Switching Method	Ctrl + mouse movement across screen border (multi-viewer)

Topology

Computers Supported	4 computers
Displays Per Computer	1 displays
Total Video Inputs	4
Total Video Outputs	2
KVM Segment	Secure

Video & Features

Video Standard	DVI-D input, HDMI output
Max Resolution	1920x1200
USB Hub Ports	0
Audio Support	Yes

Video interface

Video Connector	Mixed

Per display capability

Max Resolution Single Display	1920x1200

USB peripheral switching

HID Emulation	Yes

USB-C and power delivery

Power Delivery Wattage	No

Switching control

Mouse Or Cursor Switching	Yes

Audio

Analog Audio Jacks	Yes

Physical and power

External Power Required	Yes

In the box and price

Price	3613.50 USD

FAQs

What are the key specifications of the Adder AVS-1124 (4-Port Multi-Format Secure Video Switch / DP/HDMI/DVI / 4K)?

Key specs for the Adder AVS-1124: Max Resolution 1920x1200, Max Resolution Per Display 1920x1200, Audio Support Yes, Computers Supported 4 computers, Displays Per Computer 1 displays, Switching Method Ctrl + mouse movement across screen border (multi-viewer).

Who is the Adder AVS-1124 (4-Port Multi-Format Secure Video Switch / DP/HDMI/DVI / 4K) best suited to?

Best suited to: Broadcast and security control rooms; Facilities needing RS232/IP automation integration; Mixed DisplayPort/HDMI/DVI source environments.

What are the drawbacks of the Adder AVS-1124 (4-Port Multi-Format Secure Video Switch / DP/HDMI/DVI / 4K)?

Not the best fit for: Single-user home office setups; Budget-constrained small offices; Simple two-PC desktop switching.