This is the MCO (Miyoshi) external USB touchpad, model TTP-US01. It connects to a PC with the included B-type cable. Compared to a mouse, it's compact and easy to carry. I used it occasionally for work, but I'm selling it now because the OS on my PC has changed. It's compatible with Windows 7 and 10, and operation is not guaranteed on other operating systems, so please be aware of this. Also, please refrain from purchasing if you are sensitive to items that have been stored at home. Product Name: Smooth USB Touchpad Model Number: TTPUS01/BK Manufacturer: MCO (Miyoshi) Color: Black Connection Type: Wired (B-type)