Honeycomb 3.1 users can now plug in and use external mice, trackballs, keyboards, and game controllers — really, any USB - powered peripheral. (tabletpcreview.com)
The touchpad appears as a normal external mouse — either a USB or PS / 2 mouse — to Windows itself. (howtogeek.com)
The Surface Pro runs Windows 10, which (unlike Windows 8) is a full - blown desktop - first OS, and as such it works perfectly with peripherals like an external mouse and all of the legacy Windows apps many people use every day. (businessinsider.com)