Mad Catz Rock Band 3 MIDI Pro-Adapter for Wii/Wii U

Selling my Mad Catz MIDI Pro-Adapter for Rock Band 3 on the Wii. This is the little box you need if you want to hook up real MIDI drums or keyboards to play the game. It's got the clip on the back and the item number is 96071. I havent used it in a bit but it was working great last time I hooked it up. Great for anyone trying to get a more realistic setup going for RB3. $40 obo