Aluminum Alloy shell - We want to give customers the best quality; we use aluminum alloy for the body, which provides you with an excellent premium look, great drop resistance, light-weight, strong, and robust corrosion resistance | Digital Display- KVM Switch 2 port triple monitors with a digital display which lets you easy to see the current channel even in the dark investment | Hotkey - Tired of a manual button switch? This product gives you a convenient way to switch, including keyboard hotkeys switch, mouse wheel switch | Two computers three monitors - Control 2 HDMI interfaced computers or other applicable devices using one keyboard, a mouse, three HDMI monitors with audio & microphone, and USB 3.0 HUB for data transferring rate up to 5Gbps/s (10 times faster than USB 2.0) | HDMI Switch 4K - Supported resolutions: 480i, 480p, 720p, 1080i, 1080p, 2K@144Hz, 4K@60Hz RGB 4:4:4 HDR10, HDMI 2.0 compatible.Auto-Scan, auto-detection, auto EDID. Hot plug & play and HDCP. Multi-platform: support Windows 10/7/2000/XP/Vista, Linux, and Mac | Attention: hotkey software does not work with a keyboard with a maximum transfer rate greater than 12Mbps; (about 1% in the market). If this happens, turn off the keyboard hotkey by using right[CTRL] + right [CTRL] + [k] + [Enter]. After that, the keyboard USB port became a standard USB 2.0 Hub and can be used for any USB device. Please note that you can still use the mouse hotkey switch and one-button switch | Attention: This HDMI Triple monitor KVM switch requires 3 HDMI outputs for each computer; if you need more HDMI output, consider a good quality DP to HDMI adaptor, a cheap adaptor can lower the output quality and cause problems like screen flickering | Attention: If you have a discrete graphics card, such as an NVIDIA graphics card, you must use the HDMI ports from your graphic card; if you use the HDMI port from your motherboard, it is not going to work. If you need more HDMI ports, you can use a DP to HDMI adaptors or DP to HDMI cables that meet your monitor specs | Attention: MacBook Pro user please check your model before buying this product, some model such as M1 or M2 chip that only support one external monitor, M1 pro (2 external monitors), M1 Max (4 external monitors)