Item is new. I opened the box to inspect the contents and take photos. No manual included.Features & details1. 8K DP 1.4 Dual Monitor Switch: 2 computers/laptops sharing one set of keyboard & mouse, 2 monitors, audio, microphone and 1 pcs USB 3.0 peripheral device. With 6 pcs high shield Displayport 1.4 cables for input and output. (Tips: 1. this KVM switch required your computer with 2 or multi video outputs. 2. This KVM switch is without EDID emulation. 3. Please use the Displayport 1.4 cables which come with the KVM switch to connect your computers and monitors to avoid monitors flickering.)2. Dual Monitor KVM DP 1.4: Resolution compatible 7680x4320@30Hz, 5120x2880@50/60Hz, 3840x2160@60Hz/120Hz/144Hz, 3840x1620@60Hz/120Hz/144Hz, 3440x1600@60Hz/120Hz/144Hz, 3440x1440@60Hz/120Hz/144Hz, 3840x1080@60Hz/120Hz/144Hz/165Hz/240Hz, 3200x1800@60Hz/120Hz/144Hz/165Hz/240Hz, 2560x1440@60Hz/120Hz/144Hz/165Hz/240Hz, 2048x1536@60Hz/120Hz/144Hz/165Hz/240Hz, 2048x1280@60Hz/120Hz/144Hz/165Hz/240Hz, 2048x1080@60Hz/120Hz/144Hz/165Hz/240Hz, 1920x1200@60Hz/120Hz/144Hz/165Hz/240Hz, etc.3. 144Hz KVM Dual Monitor: Support keyboard and mouse, touch screen, OLED screen, 16:9 widescreen, 21:9 ultra-wide monitors, etc.4. KVM Switch 2 Monitors 2 Computers: Four switching way optional: Hotkey switching(Num Lock + Num Lock + 1 / 2 + Enter, or Ctrl + Ctrl + 1 / 2 + Enter, or Scroll Lock+ Scroll Lock+1 / 2 + Enter), mouse switching (click mouse wheel 2 times), manual button switching, wired remote push button switching.5. KVM Switch Dual Monitor Displayport: supports 3 display modes: extended display, mirror display, and spliced display. Support auto detection, auto scan, and waking up, with memory function in case of power-down. Drive-free for Windows 10/7/2000/XP/Vista, Linux, Mac, Debian, Ubuntu, Fedora, Raspbian, Ubuntu, etc.6. If only one computer is BIOS-based, start by turning it on, logging in, and waiting for the display. Switch to the second computer and turn it on. If both computers are BIOS-based, start the KVM, then the first BIOS computer, log in, wait for the display, switch the KVM to the second computer, and finally, turn on the second BIOS computer. In short, don't start both BIOS computers simultaneously to avoid issues like a black screen or disabling your keyboard and mouse.Retails for 199.99
