Adder Technology

Adder AVSV1004 Secure 4-Port USB VGA KVM Switch

Expert rating8.8 / 10

Port Count:: 4 computers
Video Standard:: VGA
Security Certification:: EAL4+ / Tempest

Consumercarts is reader-supported. Learn more

Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

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

Adder AVSV1004 Secure 4-Port USB VGA KVM Switch Review

Adder AVSV1004 secure 4-port USB VGA KVM switch EAL4+ Tempest certified, government classified 4-network isolation switch without smart card reader

Four certified-isolated network channels without the built-in CAC reader, the practical option for analyst desks that need to juggle four classification levels but authenticate outside the KVM itself.

Four Networks, No Smart Card Hardware

Same certified isolation as the AVSC1104 across four channels, but skipping the integrated CAC reader for sites that don't need it at the switch level, trimming cost across a large multi-seat deployment.

Deployment at Scale

For agencies fitting out dozens of analyst desks, the per-unit savings from skipping the CAC reader adds up quickly when smart-card auth is already handled by a separate reader or software layer.

Comparison to Alternatives

The AVSC1104 is the direct CAC-equipped equivalent at the same 4-port count for sites that do need it. The AVSV1002 covers 2 networks instead of 4 at a lower price. Raritan's RSS-104C4K supports DVI/HDMI/VGA/USB/audio at 4 ports for facilities needing modern video connectivity alongside certified isolation.

Our verdict

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

Expert rating8.8 / 10

A cost-effective certified secure KVM for 4-network desks that don't need a built-in CAC reader.

Best for

Multi-network analyst desks using external smart-card authentication
Large-scale secure facility rollouts where CAC readers are handled separately
Government IT standardizing on Tempest-shielded 4-port secure switches

Not for

Desks requiring an integrated CAC reader (see the AVSC1104)
Environments needing DVI/HDMI rather than VGA video
Commercial offices with no classified network requirement

Specifications

What these specs mean

Capability Score

3.8/10

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

Identity

Brand	Adder Technology
Model Number	AVSV1004
Switching Method	Push button

Topology

Computers Supported	4 computers
Displays Per Computer	1 displays
KVM Segment	Secure

Video & Features

Video Standard	VGA
Max Resolution	1920x1200 @ 60Hz
Audio Support	No

Video interface

Video Connector	VGA
Video Interface Version	VGA

Per display capability

Max Resolution Single Display	1920x1200
Max Refresh At Max Resolution	60 Hz

USB peripheral switching

Dedicated HID Ports	2 ports

Switching control

Button Switching	Yes
Hotkey Switching	No

FAQs

What are the key specifications of the Adder AVSV1004 Secure 4-Port USB VGA KVM Switch (EAL4+/Tempest)?

Key specs for the Adder AVSV1004 Secure 4-Port USB VGA KVM Switch: Dedicated HID Ports 2 ports, Max Resolution 1920x1200 @ 60Hz, Max Resolution Single Display 1920x1200, Max Refresh At Max Resolution 60 Hz, Max Resolution Per Display 1920x1200, Audio Support No.

Who is the Adder AVSV1004 Secure 4-Port USB VGA KVM Switch (EAL4+/Tempest) best suited to?

Best suited to: Multi-network analyst desks using external smart-card authentication; Large-scale secure facility rollouts where CAC readers are handled separately; Government IT standardizing on Tempest-shielded 4-port secure switches.

What are the drawbacks of the Adder AVSV1004 Secure 4-Port USB VGA KVM Switch (EAL4+/Tempest)?

Not the best fit for: Desks requiring an integrated CAC reader (see the AVSC1104); Environments needing DVI/HDMI rather than VGA video; Commercial offices with no classified network requirement.