![dual monitor kvm switch 2 monitor 2 computer](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Each PC needs 2 HDMI cables + 1 USB 3.0 cable to connect with the KVM to ensure the keyboard, mouse and 2 monitors work properly.
Connection steps:
Step 1. Connect 2*HDMI cables+1*USB cable between PC 1 and KVM (USB 3.0, INPUT A1, INPUT B1).
Step 2. Connect 2*HDMI cables+1*USB cable between PC 2 and KVM (USB 3.0, INPUT A2, INPUT B2).
Step 3. Connect 2*HDMI cables between the KVM (OUT A, OUT B) and the monitors.
Step 4. Connect the keyboard,mouse and other USB devices to the USB3.0 ports on the KVM.
Step 5. Insert the wired remote to remotely switch between PC1 and PC2.
***Notice***
1.After connecting the computers and the monitors through KVM, you need to set the screen output mode on the computer (press Windows+P) and select the output mode in the pop-up window on the screen. Otherwise, only one of the two connected monitors has an image.
2.Most of the reasons why only one video output works is because of incorrect connection. Please make sure each computer have(2 HDMI cables+1 USB cable) connect to the KVM.