Corsair CX550 vs Corsair CX650M

The Corsair CX550 is one of the very best products at its price point and should be considered by anyone willing to spend around $150 on a PSU.

The Corsair CX650M, on the other hand, is mediocre at its $64 asking price and should be avoided by the majority of people. If you're interested in some alternatives at its price, we suggest looking at some better options in the $95 range.

The Corsair CX550 hasn't managed to get enough recognition from sources that do high-quality hands-on testing and therefore didn't make it into any relevant roundups. That, by itself, makes it difficult to recommend.

Moving on to the Corsair CX650M: no sources that perform reliable and objective hands-on testing have included it in their PSU roundups, which usually means that a product doesn't make for a good purchase.

As a last step, we wanted to do a head-to-head Corsair CX550 vs. Corsair CX650M comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.