Thank you, seller. The item is as described. It worked perfectly for me to share a mouse and keyboard between four computers. I wasn't able to share the same monitor, but my monitor has four HDMI ports, so each computer has its own HDMI port. I switch between them using the monitor's remote and use the same mouse and keyboard. saved me a lot of space, and it also has a USB share between all 4 computers. I love this feature.