It's a basic splitter that does 4K30 NV12 and 1080p60 YUY2. It comes with a USB power cable but no power supply. I can sell you a surge protector with USB for $7. I also have some 2-port HDMI 1.4 splitters for $5.
I have a lot of good cheap mechanical keyboards, mice, webcams, mics, video lights, live streaming gear, and USB hubs I need to sell to pay the RAM tax due to the sky high price of RAM.