Originally posted by: Zepper
Yes, Rosewill is Newegg's house packager - just like Mad Dog is to CraPusa...
Slightly off there - CompUSA's "house brand" is FMI. MadDog is just a rebrander, and they distribute through several retail stores, CompUSA and OfficeMax being two of them.
That being said, the "Rosewill"-branded components, are source from a variety of OEMs in a variety of industries, having ... yes, a variety of quality levels as well. There is really no such thing as "Rosewill quality", since "Rosewill" doesn't actually make anything at all.

But some of their OEM'ed product lines, at least, seem halfway-decent, like their PSUs. Not sure about their RAM, and I'm disappointed to hear that their AOpen-made optical drives seem to be having issues.
AOpen (at least used to) make some pretty decent stuff - for example, AOpen cases and PSUs use/are FSP-based. Their opticals were often re-branded or customized OEM Teac or Ricoh drives. While AOpen may be a part of the "Acer Group", they seem to be somewhat independent, and actually custom-build/resell components made from mfgs
other than Acer, surprisingly enough. Likewise, AOpen products' quality level is often a cut above Acer's.