Black Box KVS4-4004DHVX KVM Switch
Top Pick
Black Box
Black Box

Black Box KVS4-4004DHVX KVM Switch

4.5

Best high performance switch for secure multi monitor professional workstations.

This is the gold standard for managing classified networks where data leakage isn't an option. It sacrifices the convenience of software-based switching for uncompromising physical isolation and tamper-proof security. If your workflow demands absolute air-gapped confidence, this is the only way to control multiple machines from a single console.

$2992.14

In stock

at

Provantage

Who it's for

  • Creative professionals requiring high-fidelity displays for detailed design work
  • Government and defense personnel handling sensitive or classified information
  • Power users managing complex workflows across multiple dedicated workstations

Who should skip it

  • Budget-conscious home office users seeking a simple connectivity solution
  • Casual users who prefer plug-and-play simplicity over advanced configuration
  • Minimalists working in compact environments with limited surface area

Performance breakdown

Security Compliance

NIAP 4.0 certification sets the gold standard for classified network environments.

Excellent

Physical Tamper Resistance

Anti-tamper battery and seals provide robust protection against unauthorized physical access.

Excellent

Signal Isolation

Triple-layer isolation effectively eliminates data leakage risks between connected networks.

Excellent

Peripheral Authentication

Dedicated CAC port support ensures seamless, secure access for authorized users.

Excellent

Video Fidelity

Supports 4K resolution, though the 30Hz refresh rate limits fluid motion.

Good

Connectivity Versatility

Broad interface support handles DisplayPort, HDMI, and DVI-I connections with ease.

Excellent

Key Specs

Number of computers supported

4

Number of monitors per computer

4

Video interface type

DisplayPort, HDMI, DVI

USB interface type

USB 2.0

Supported video resolution

4K Ultra HD

Max refresh rate

30 Hz

Audio switching supported

Yes

Switching method

Push Button

USB peripheral sharing supported

Yes

Power source type

AC Adapter

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Black Box KVS4-4004DHVX KVM Switch

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