?STABLE PERFORMANCE? USB 3.1 Kvm hdmi switch selector with remote Plug and Play, no driver; Industrial metal chassis design improve cooling system; Include DC 5V 3A Power Adapter to prevent power loss. ?HIGH COMPATIBILITY? Pls Power On KVM Switch by Power Adapter firstly to ensure HOTKEY work well. 4 port kvm usb hdmi switch for bluetooth mechanical gaming keyboard, computers, pc Mac mini, iOS Windows Linux, N-v-i-dia 3080 3090 and LG C1,OLED GtG,HDMI 2.1 monitor,Printer,Scanner, game controllers, external HDDs, Android phone, security, conference, surveillance center, office, Xbox one S, PS 5 PS4 Pro, N-i-n-tendo, projector,HD camera. ?AUDIO VIDEO? Full 48Gpbs HDCP 2.3 HDMI 2.1 8K@60Hz 4K@120Hz, 4K@60Hz 4:4:4 8bit HDR D-o-l-b-y Vision, 1080p 240Hz/144Hz/120Hz/60Hz 3D, 3840x2160 60H, 3440x1440 60Hz. Digital 5.1 7.1CH, D-o-l-b-y Atmos, DTS:X-- Variable Refresh Rate, VRR, G/Sync & Free Sync -- Pls use less than 3mtr HDMI 2.1 cable for 4K 120Hz, less than 5mtr AWG26 HDMI2.0 cable for 4K 60Hz. ?EASY SET UP?Power on KVM switch with power adapter, connect PC to Internet -- Connect USB HDMI cable firstly to wake up USB switch around 20secs. Ensure mouse to USB1, keyboard to USB2 -- Turn on/ off HOTKEY by toggle switch -- Mounting Brackets for flexible installation --- Power Adapter & 4pc USB 3.0-A Cable included. ?8K HDMI KVM Switcher USB3.0 Hotkey 4 In 1 Out ?Control 4 HDMI sources / 4 computers laptops by one set USB keyboard+mouse, Hotkey Keyboard Switch for USB 1.1 USB 2.0 gaming keyboard -- Variable Refresh Rate, VRR, G/Sync & free Sync, 8K 60Hz 4K 120Hz HDMI USB 3.0 switch in sync, downward compatible --Support IR remote with IR Extension cable -- KVM HDMI Switch D-o-l-by HDCP Bypass.