Reddit reviews Rock Band 2 Guitar Receiver Dongle - PS3
We found 1 Reddit comments about Rock Band 2 Guitar Receiver Dongle - PS3. Here are the top ones, ranked by their Reddit score.
Model#: PDMSELEA2B (Grey, as pictured.)
I'm not 100% sure, because I haven't had to buy a dongle. However, this looks like something you might be looking for.