Black Box

Black Box Wizard KVM Switch KV2004A

Expert rating6 / 10

Port Count:: 4 computers
Video Standard:: VGA
Max Resolution:: 1920x1440
USB Hub Ports:: 0

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: Black Box Last updated: September 12, 2026

Black Box Wizard KVM Switch KV2004A Review

The Black Box Wizard KV2004A is a 4-port VGA KVM switch supporting resolutions up to 1920x1440.

Black Box's Wizard series has been a workhorse in server rooms for a long time, and the KV2004A is the straightforward 4-port VGA entry, no USB hub, no audio, no frills, just reliable keyboard/video/mouse switching for legacy or budget server management. It's a far more basic proposition than the Rose MPB-4U2V's mixed-signal flexibility in this catalog, aimed instead at a rack of similar-generation servers rather than a mixed desktop fleet.

No-Frills Server Room Switching

The KV2004A skips a USB hub and audio entirely, keeping the design focused purely on reliable keyboard, video and mouse switching for a rack of servers.

VGA at Up to 1920x1440

Supports resolutions up to 1920x1440, enough for legacy server console work without any digital video circuitry to add cost or complexity.

Comparison to Alternatives

Versus the Rose MPB-4U2V, that supports mixed DVI/HDMI/DisplayPort sources and a USB hub, worth it for a modern mixed-hardware desk. Versus the ATEN CS1924M, that's a digital 4K DisplayPort/HDMI switch, worth it for current-generation hardware rather than legacy VGA servers.

Our verdict

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

Expert rating6 / 10

A basic, reliable 4-port VGA switch for legacy server rooms, not built for modern multimedia desks.

Best for

Server rooms managing 4 legacy VGA-based servers
IT teams needing simple, no-frills KVM switching without USB or audio
Budget-conscious rack setups that don't need digital video

Not for

Modern desks needing USB peripheral sharing or audio switching
Anyone needing HDMI, DisplayPort, or 4K resolution
Mixed-signal setups (see the Rose MPB-4U2V)

Specifications

What these specs mean

Capability Score

5.6/10

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

Identity

Brand	Black Box
Model Number	KV2004A
Switching Method	Button, hotkey

Topology

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

Video & Features

Video Standard	VGA
Max Resolution	1920x1440
USB Hub Ports	0
Audio Support	No

Per display capability

Max Resolution Single Display	1920x1440

Display continuity

EDID Emulation	Yes (learns each monitor)

USB peripheral switching

USB Switching Speed	USB 2.0

Switching control

Hotkey Switching	Yes

In the box and price

Price	559.66 USD

FAQs

What are the key specifications of the Black Box Wizard KVM Switch KV2004A (4-Port)?

Key specs for the Black Box Wizard KVM Switch KV2004A: USB Hub Ports 0 (PS/2 and USB keyboard/mouse support only), Max Resolution 1920x1440, Max Resolution Per Display 1920x1440, Audio Support No, Port Count 4 computers, Switching Method Button, hotkey.

Who is the Black Box Wizard KVM Switch KV2004A (4-Port) best suited to?

Best suited to: Server rooms managing 4 legacy VGA-based servers; IT teams needing simple, no-frills KVM switching without USB or audio; Budget-conscious rack setups that don't need digital video.

What are the drawbacks of the Black Box Wizard KVM Switch KV2004A (4-Port)?

Not the best fit for: Modern desks needing USB peripheral sharing or audio switching; Anyone needing HDMI, DisplayPort, or 4K resolution; Mixed-signal setups (see the Rose MPB-4U2V).