Holiday Shipping Details & Extended Holiday Returns 
This 3 computers 3 monitors KVM switch perfect for hooking up 3 desktops /laptops to share one set of wired or wireless keyboard mouse and 3 monitors (supports extended and mirrored display modes). Please note: extended mode can output three different screens and mirror mode can output three identical screens.
Features:
- 3 computers share 3 monitors and 4 USB device.
- Supports wired or wireless keyboard and mouse.
- USB 3.0 with ultra-fast data transfer up to 5Gb/s.
- Support resolutions up to 8K@60Hz, 4K@144Hz.
Each PC requires 1*HDMI+2*DP+1* USB cable to connect the 3 monitor KVM switch,OUT A, OUT B, OUT C connect to 3 monitors. Support DP to HDMI, USB-C to HDMI, USB-C to DP converter and USB-C docking station.
Please confirm whether your computers support 1*HDMI+2*Displayport before placing an order.
- Switching mode: button switch and wired remote.
- Two output modes: Mirror and Extended mode.
- 12V power adapter, the recognition is more stable.
The KVM switch 3 monitors driver-free for Windows, Mac, Linux, Unix, Ubuntu. Support input devices such as PC, Laptop, PS4, Raspberry Pi, DVR, NVR. Applied for Office,Game,Meeting,etc..
This triple monitor KVM switch is equipped with a 12V DC power supply to support high power USB devices such as hard drives, webcams etc. It avoids situations where the power supply is insufficient to make it unusable and ensures stable transmission between devices without disconnection.
Windows OS: Press the shortcut key "WIN+P" and then select "Extension" or "mirror"
Mac OS: Set [Mirror Mode]: Select [A-p-p-l-e Icon] [System Preferences], click [Display] [Arrange], and then check [Mirror Display];
Set [Extended Mode]: When [Mirror Display] is unchecked, "Extended Mode" can be achieved.