Can someone tell me the specs on the back of their HP2 adaptor? I misplaced mine and I'm not positive that the one I found is the one I ordered for it because the specs aren't identical to the one pictured online. I have 300mA, and while I'm sure it will work, I'm wondering if the Presonus adaptor is still in a box somewhere. (And I could've sworn that it said Presonus somewhere on it; this one is a generic black adaptor made in China.)