Hey guys,
 
I'm searching for a simple USB DAC for my computer system, because I want to get rid of the electrical noise from there (up until recently I had no idea what this was caused by). Therefore, it can be rather cheap, just around 30€ so I can put it on my desk. Preferably it should have a 3.5mm and a 6.5mm plug, just in case they have these at this price category, but if not that's also fine.
 
Never had one of these, so I got now idea what terms to search for or what I need to look out for.

It is a bit hard finding a combined USB DAC+Amp in that price range. I am not completely sure, but the new FiiO K1 might be around your budget. But which headphones do you want it to drive?

Sennheiser HD 518, but I also want to plug in a 3.5mm-to-cinch cable for my speakers (the current remote volume controller is about to break). Hence the dual-plug.