byza :
What is the rest of your specs? The CX has cheap capacitors and doesn't work well under heavy load or higher temps. It's ok for general use computers but not good for gaming. I'd still look and an EVGA B series around the same price, although they aren't fantastic either.
Can you reccommend not very expensive and good psu. My specs are i5-4690k, radeon r9 270x , 2x4gb crucial ballistix , msi z87-g43, western digital caviar blue 1tb 64mb.