Part 2: Four Cheap 80 PLUS Bronze Power Supplies, Reviewed

Cooler Master Silent Pro M2 520W

Cable quality is excellent, and so is our overall impression of this PSU. Each lead is sufficiently long; we'd even go so far as to say generously so. Thanks to a pair of 6+2-pin auxiliary PCI Express connectors, you can natively support CrossFire or SLI without adapters, so long as you're using cards with one input. While the large number of peripheral connectors (six SATA and four Molex) is impressive for this round-up of budget PSUs, it may impact the price. As it is customary for Cooler Master PSUs, the Silent Pro M2 PSU sports a single-rail design, and its 12 V rail can supply up to 40 A.

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Cooler Master Silent Pro M2 520W
AC Input100-240 V, 50-60 Hz
DC Output+3.3 V+5 V+12 V (#1)+12 V (#2)+12 V (#3)+12 V (#4)-12 V+5 Vsb
20 A22 A40 An/an/an/a0.3 A2.5 A
Individual OutputRow 3 - Cell 1 Row 3 - Cell 2 Row 3 - Cell 3 Row 3 - Cell 4 Row 3 - Cell 5 3.6 W12.5 W
Rail UtilizationSysSysCPU & VGA
Combined Output120 W480 W
Total Continuous Output520 W
Peak Output580 W