We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypeHDMI, USB
  • PC ConnectorsHDMI and USB-C
  • Computer Connections2 Ports
  • Monitor Connections1 Port
  • Video Resolution7680×4320
  • PC SelectionManual Switch
  • 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.

Highlights

  • 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

Specifications

BrandESTONE
SeriesOZK4
ModelOZK4
TypeHDMI, USB
PC ConnectorsHDMI and USB-C
Computer Connections2 Ports
Monitor Connections1 Port
Video Resolution7680×4320
PC SelectionManual Switch
AutoScan Interval3 seconds
LED IndicatorsYes
ApplicationHDMI 2.1 KVM USB switch: KVM Switch allows control 2 computer with one set of controls (keyboard and mouse) and display screen. Realizes 2 in and 1 out free selection synchronous switching. You can centrally control and manage hosts laptop or game console without having to move from one workstation to another.
FeaturesSupport HDMI 2.1 HDCP 2.3
Resolution: Support 1080P/1080@240Hz, 3840x2160p, 4K/60Hz/120Hz,8K@60Hz resolution, adaptive screen resolution
Support system: Windows XP, Windows7, Windows10, Apple MAC, Linux, Unix and other operating systems
Supports high current hard disk devices
Two Switching method: 1.Press the "Select" button on the KVM switch panel to switch between the two source devices;2.use hotkey switch(Ctrl+Shift+ 1 / 2 to PC1 / PC2);
Highly integrated digital chip combination, plug and play
Dimensions5.43 x 5.35 x 1.46 inches
Weight9.52 Ounces

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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.