USB 3.0 Triple Monitor HDMI + 2 DisplayPort KVM Switch for 2 Computers Features: 1. 2 computers / laptops share one set of keyboard, mouse and 3 monitors (HDMI+2 DisplayPort) 2. Triple monitors output support up to 4K@60Hz for extended and mirrored display 3. Two Switching modes: Button switch and wired remote. 4. With extra 3 USB 3.0 and Audio Microphone output 5. Cross support most major OS including Windows, Linux, Mac and more 6. The ports that need to plug in HDMI/DisplayPort/USB cables are all hidden behind the KVM, so the desktop doesn't get cluttered installation steps: 1. Insert the adapter into the KVM ; 2. Plug the 2*Displayport cable and HDMI cable into the KVM switch and monitor;(Output) 3. Plug the Displayport cable, HDMI cable and USB cable into the KVM switch and your computer/laptop (HDMI and DP cables are not included)(Input) Please check whether HDMI IN1A, DP IN1B, DP IN1C and USB IN1 are corresponding, and whether HDMI IN2A, DP IN2B, DP IN2C and USB IN2 are corresponding. Mixed insertion is not supported. HDMI IN1A + DP IN1B + DP IN1C + USB IN1=PC1 HDMI IN2A + DP IN2B + DP IN2C + USB IN2=PC2 4. Insert the mouse and keyboard into the KVM switch 5. If needed, you can connect a microphone and audio port Note： 1. Most of the reasons why only onevideo output works is because of incorrect connection. Please make sure eachcomputer have 1 HDMI /2 DP cables connect to the KVM. 2. If the KVM switch does not work, you can turn off the switch on the panel and turn it on again after 2-3 seconds, and it will return to normal. Triple Monitor KVM Support 2 Switching Modes Quickly switch between the 2 computers with just one click of the switch button on the panel or use the wired remote controller (included in the package). Please note: This kvm switch displayport does not support hotkey switching. 2 PCs Share 3 USB 3.0 Devices This kvm switch 3 monitors 2 computers with 3 USB 3.0 Ports for keyboard, mouse, printers, USB headsets or webcams. Headphone Jack and Microphone Jack This dual monitor HDMI KVM switch comes with a 3.5mm Audio Jack port with a DAC chip inside, which can be inserted into a 3-segment 3.5mm earpiece device, and a 3.5mm microphone interface, which can be inserted into a 3-segment microphone.