MT-VIKI 4K@120Hz/144Hz USB 3.0 HDMI KVM Switch 4 Port 8K@60Hz, Aluminum KVM Switch HDMI 2.1, HDR for Games (4 USB 3.0 Cable Included)

Kindly Reminder: Must use verify HDMI cable, 8K@60Hz is recommended. Input and output cable cannot exceed 2.5 m( 8.2 ft) respectively.
Note: 8K HDMI cable is not included in the package. ^^ KVM Switch 4 In 1
Out: This 8K KVM Switch allows you four computers share one monitor, one set of keyboard & mouse, and 2 USB 3.0 Devices. Supports resolution up to 8K@60Hz and backward compatible 4K@30/60/120/144Hz, 2K@165Hz, 1080@240Hz ^^ Two ways for
Switching:
1. Push button 2, Wire-desktop Controller. Blue LED indicator shows which port is active.
[NOTE: Hotkey Switching is NOT Supported.
] ^^ Great Compatibility: This KVM switch HDMI supports Windows 11/10/ 8.1 /8/7/Vista/XP, Mac OS, and Linux systems. Just plug and play, driver-free ^^
Package List: 1* KVM Switch, 4* USB 3.0 Cables, 1* Desktop Controller, 1* User Guide, 1* Power Cable (Power adapter is not included, if power insufficient, pls plug in DC5V1A USB adapter).
NOTE: 8K HDMI Cable is NOT INCLUDED ^^ Important notedThis KVM switch features gain adjustment functionality. If noise or no display occurs, press the current port button three times in succession to adjust the gain. If the issue persists, try multiple timesthere are 6 gain levels available. [Please ensure your device supports either 8K@60Hz or 4K@144Hz resolution. ]