Recently I picked up two things: a USB fast-charging adapter for the Nexus 6P that I plan to use at work, and a Bluetooth module for my desktop. The Bluetooth module is straightforward. Usually you plug in a USB one and the system just recognizes it, especially since my desktop runs Linux — even more likely to work out of the box. But that was too easy. I could’ve just bought any random one, but I always want something fancier, so I got a Dell Bluetooth dongle that supposedly supports entering the BIOS. Of course, that BIOS trick only works with a Dell Bluetooth keyboard. The Dell Bluetooth keyboard works fine with this dongle, but plug the thing into a desktop and it isn’t recognized… and that’s not all — it doesn’t work under Windows 10 either.