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Compact silver aluminium box with front select button and LED indicators, rear HDMI and USB-C ports, top USB 3.0 sockets

ESTONE

ESTONE OZK4 8K@60Hz 2-Port HDMI 2.1 KVM Switch USB 3.0

SKU CH-R9BN-QHVM6

A 2-port HDMI 2.1 KVM switch lets two computers share one 8K 60 Hz display, keyboard, mouse and four USB 3.0 peripherals with push-button or hotkey switching

  • PC connectionsHDMI and USB-C
  • Computer ports2 Ports
  • Monitor ports1 Port
  • Supported video resolution7680 × 4320
  • Switching methodManual Switch
  • Auto-scan interval3 seconds
  • Control two computers with one keyboard, mouse and monitor
  • 8K at 60 Hz and 4K at 120 Hz via HDMI 2.1
  • Four USB 3.0 ports for high-speed peripherals
  • Switch instantly by front button or Ctrl+Shift hotkeys
  • Aluminium alloy shell resists interference and runs cool

Two-computer HDMI 2.1 KVM

The ESTONE OZK4 lets a single monitor, keyboard and mouse control two computers or consoles. It accepts two HDMI 2.1 inputs and one USB-C link per system, then outputs one HDMI 2.1 signal up to 7680×4320 at 60 Hz. Manual button or hot-key switching changes the active host instantly.

Four USB 3.0 ports and dual USB-C inputs

Each computer connects through its own USB-C port for video and data, while four downstream USB 3.0 sockets share peripherals such as drives, printers or high-current disks. The hub function means attached storage stays available to whichever system is selected without re-plugging cables.

Aluminium-alloy shell with front-panel button

The 111.8 × 63.2 × 24.5 mm metal enclosure resists interference and dissipates heat without fans. LED indicators show the active port, and the tactile select button on the top surface allows quick switching without reaching behind the desk.

How it compares

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

Price $43.99
Cheaper than about 78% of the 4,010 comparable items (median $105.49).

Specifications

Product
Brand nameESTONE
Product lineOZK4
Model nameOZK4
Product typeHDMI, USB
Display
Supported video resolution7680 × 4320
Ports & slots
PC connectionsHDMI and USB-C
Computer ports2 Ports
Monitor ports1 Port
Size & build
Product dimensions5.43 × 5.35 × 1.46 in
Product weight9.52 oz
More details
Switching methodManual Switch
Auto-scan interval3 seconds
Status lightsYes

Questions about this item

Will the mechanical select button or the HDMI 2.1 ports need replacement after frequent switching?

The switch uses a physical select button and hot-key combination for port changes; no moving parts inside the video path are described, so the button and HDMI 2.1 connectors are the only wear points.

What resolution or refresh-rate ceiling will I hit first when running both computers at high load?

The box supports up to 7680×4320 at 60 Hz and 3840×2160 at 120 Hz; the 8K 60 Hz limit is the first hard ceiling for a single stream.

How warm does the aluminum-alloy chassis get and does it draw noticeable power when left on 24/7?

The unit is passively cooled by its aluminum shell and draws only the small amount needed for the integrated switching chip and LED indicators; no fan or external power brick is mentioned.

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