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Compact black KVM switch with push-button controls and multiple ports

BUCIER

BUCIER DKM402C-USB3.0-E 4-Port Dual Monitor KVM Switch

SKU CH-AZ6Z-2AZDS

Controls four computers from one keyboard, mouse and up to two monitors at 4K 60 Hz with three USB 3.0 ports and audio

  • Switching methodPush Button
  • Temperature range-20 degrees celsius
  • Power requirements5 V
  • Product typePush Button
  • Product dimensions1.0 in × 1.0 in × 1.0 in
  • Product weight0.01 g
  • Control 4 PCs with one keyboard, mouse and dual monitors
  • 4K at 60 Hz resolution on both extended and mirrored displays
  • Three USB 3.0 ports at 5 Gbps plus audio and mic jacks
  • Push-button switching for instant computer selection
  • Compact 1.0 in cube weighing .01 grams

What this KVM switch does

This BUCIER DKM402C-USB3.0-E lets one keyboard, mouse and up to two monitors control four computers. It accepts both HDMI and DisplayPort inputs on each port, so mixed-cable setups work without adapters. The unit is aimed at home-office users and multi-system workstations that need a tidy, single-desk workflow. It does not suit buyers who need more than four connected PCs or who want integrated docking features beyond video, USB and audio.

Installation notes and common issues

Connection is straightforward: plug each computer’s HDMI and DP outputs, the shared monitors, keyboard, mouse and USB devices, then power the switch from its 5 V supply. Switching between systems is done with the front push buttons. The most frequent problem is a computer that does not output dual video signals; the second monitor will stay dark until that PC’s graphics settings enable multi-display mode. Some users also forget to set the correct input on each monitor after switching.

Check before you order

Verify that every computer you plan to connect can drive two displays simultaneously over HDMI and DisplayPort. Confirm that your monitors, cables and graphics cards all support 4K at 60 Hz if you need that resolution; otherwise the switch will fall back to 1080P at 60 Hz or lower. Ensure you have a free USB 3.0 port on each PC for the upstream cables and that your headsets use standard 3.5 mm triple-pin plugs for the audio and microphone jacks.

How it compares

Measured against everything we stock in KVM Switches & Rack Consoles, at today’s prices. Recalculated every night.

Price $155.99
Pricier than about 70% of the 4,010 comparable items (median $105.49).

Specifications

Product
Brand nameArleedyn
Model nameDKM402C-USB3.0-E
Part numberDKM402C-USB3.0-E
Product typePush Button
Power
Power requirements5 V
Size & build
Product dimensions1.0 in × 1.0 in × 1.0 in
Product weight0.01 g
In the box
In the boxDisplayport HDMI KVM Switch 2 Monitors 4 Computers
Environment & compliance
Temperature range-20 degrees celsius
More details
Switching methodPush Button

Questions about this item

How do I confirm the DKM402C-USB3.0-E is switching all four computers at 4K 60 Hz on both monitors?

Verify that each PC's graphics card, both monitors, and every DP/HDMI cable support 4K 60 Hz; then use the push buttons to cycle through ports 1–4 and check that both screens show the correct desktop at the target resolution.

What cables and peripherals must I supply besides the DKM402C-USB3.0-E unit itself?

You need four pairs of DP or HDMI video cables (one pair per computer), up to three USB 3.0 devices such as keyboard, mouse, or storage, plus 3.5 mm audio and microphone cables if you want sound switching.

Should I choose the DKM402C-USB3.0-E if I only have two computers but want room to expand later?

Yes — the switch handles up to four computers, so you can connect two now and add the others later without buying new hardware.

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