Tried them all, Megahurtz by Megahurtz Currently maxing it out at 687 cause I get the best perf with it and I gave up on Hashfast (multiple tickets open for replacement, no communication, thread on their forums, no communication) I just stopped giving a damn and hope karma will strike back on them some day.

I solved the cgminer problem btw: Newer versions of cgminer on windows wont detect hashfast devices on USB3 ports.