He chose to add storage to his USB mouse but didn’t want to alter ... and it’s along the same lines we’ve seen before with a WiFi dongle in a mouse, or the thumbdrive in a controller hacks.

It's a wireless mouse, as you have no doubt surmised by the name: it comes with a USB-C dongle (and a USB-A adapter, if you need it), so you simply plug it into your Windows or Mac computer and ...