500W to 550W: 12 Power Supplies Compared

Comparison: SATA Cable Lengths

SATA connectors continue to increase in prominence in modern systems, since many new hard drives only include SATA power plugs and we are seeing an increasing number of optical drives that utilize SATA connectors. Unfortunately, quite a few power supply companies apparently haven't noticed this trend, and they think that four or five SATA connectors is sufficient. After all, most computers only have one hard drive and one optical drive -- who needs more than that?

This is one case where modular power supplies can be very convenient, particularly if the manufacturer chooses to provide extra harnesses. You could build a system today with more Molex connectors, but in a couple years the only thing using Molex connectors might be your fans, at which point in time you could switch to SATA harnesses. Corsair, Enermax, and Sunbeam only provide four or five SATA connectors, while most of the others provide six.

Tagan is the only company to provide eight SATA plugs, on both of the models we tested today. Tagan also has the longest SATA harnesses, at 90 cm and 95 cm. Arctic Cooling also offers a single connector at 90 cm; however, the single longest SATA harness could become a problem if you have a large case with SATA optical drives at the top and hard drives at the bottom, which is why we prefer multiple SATA harnesses.