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

ESTONE

ESTONE OZK4 2-port HDMI 2.1 KVM switch 8K 60Hz 4K 120Hz

SKU CH-TDDK-MKJA8

Share one monitor, keyboard and mouse between two computers with 8K 60 Hz or 4K 120 Hz HDMI 2.1 switching and four USB 3.0 ports

  • 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 using HDMI 2.1 and USB 3.0
  • Display 8K at 60 Hz or 4K at 120 Hz for sharp gaming and creative work
  • Switch instantly by front button or Ctrl+Shift hotkeys without software drivers
  • Four USB 3.0 ports share printers, drives and peripherals across both connected PCs
  • Compact aluminium-alloy chassis measures 111.8 × 63.2 × 24.5 mm for tidy desk setups

Two-computer HDMI 2.1 KVM switch

The ESTONE OZK4 lets a single monitor, keyboard and mouse control two computers through HDMI 2.1 inputs with USB-C and USB 3.0 peripheral ports. It supports 7680×4320 at 60 Hz and 3840×2160 at 120 Hz, plus 1080p at 240 Hz. Compatible with Windows, macOS, Linux and Unix systems.

Sustained 8K 60 Hz and 4K 120 Hz throughput

HDMI 2.1 bandwidth and HDCP 2.3 compliance maintain full resolution and colour depth during long work or gaming sessions without signal drop-out. The integrated digital chipset handles continuous high-current USB 3.0 device traffic alongside video. Front-panel button or Ctrl+Shift hotkeys switch sources in seconds.

Aluminium alloy chassis with dense I/O

The 111.8×63.2×24.5 mm aluminium shell resists corrosion and electromagnetic interference while dissipating heat from the combined video and data streams. Two HDMI 2.1 inputs, two USB-C inputs, four USB 3.0 upstream ports and one HDMI 2.1 output sit on the rear panel. LED indicators show the active port at a glance.

Highlights

  • Control two computers with one keyboard, mouse and monitor using HDMI 2.1 and USB 3.0
  • Display 8K at 60 Hz or 4K at 120 Hz for sharp gaming and creative work
  • Switch instantly by front button or Ctrl+Shift hotkeys without software drivers
  • Four USB 3.0 ports share printers, drives and peripherals across both connected PCs
  • Compact aluminium-alloy chassis measures 111.8 × 63.2 × 24.5 mm for tidy desk setups

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

Does the ESTONE OZK4 run hot or draw much power when it stays on 24/7?

The aluminium-alloy shell dissipates heat passively; with no fan or active cooling the unit remains cool during continuous operation.

What cables or ports must my two computers already have to use this KVM?

Each computer needs an HDMI 2.1 output and either a USB-C or USB 3.0 port for keyboard, mouse and peripheral data.

Will my older 1080p 240 Hz monitor work through the OZK4 alongside a newer 8K display?

Yes — the switch supports 1080p at 240 Hz, 4K at 120 Hz and 8K at 60 Hz, so legacy high-refresh panels and modern high-resolution screens both work.

Also in this aisle

People compared these

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