1Expands 3 USB2.0 ports, supports the sharing of USB devices such as keyboard, mouse, printer, etc., easy to plug and unplug, easy to switch, and you can switch to another computer stably and quickly. 2HighDefinition Multimedia Interface 1.4 port 2 in 1 out, and is convenient for 2 computers to share a display, and can easily identify the computer being connected. 3Has a wide range of compatibility, compatible with desktops, game consoles, TV boxes, etc., and supports for Win7/8/10/XP/Vista/OS X systems. 4Supports DDC function, supports computer to read display information, automatically adjust the resolution, and the resolution is up to 4K30hz. 5Has poweroff memory function, which can save keyboard hot key setting parameters after poweroff. Plug and play, no power supply, and supports hot swap. Item Type: KVM Switch Input Port: 2 x HighDefinition Multimedia Interface Output Port: 1 x HighDefinition Multimedia Interface HighDefinition Multimedia Interface Standard: HighDefinition Multimedia Interface 1.4 Interface: HighDefinition Multimedia Interface PC Input Interface Type: USB-B Resolution: Up to 4K (3840x2160), 3D, 1920 x 1080at60hz, Backward Compatible Switch Button: Switch PC1, PC2 Power Consumption: Maximum 2W 1 xKVMSwitch 2 x Connection Line 1 xUser Manual 1 x Desktop Controller