Just a regular B, actually. I bought it before the B+. The B especially is something of a struggle with its two sole USB ports. I use one for the wifi adapter,

Just a regular B, actually. I bought it before the B+. The B especially is something of a struggle with its two sole USB ports. I use one for the wifi adapter, and the other to plug in my external hard-drive. I have to control the program entirely via my phone, since I can't plug in a keyboard or an IR adapter.