Seasonic have added a 550W PSU to their Focus Plus lineup of petite PSUs.  Measuring a mere 5.5" in length it uses a 120mm fluid bearing fan for cooling and is completely modular.  Inside you will find Nippon Chemi-con components which may account for why this unit outperformed similar ones on [H]ard|OCP's test bench.  Even better news is the price, running around $80 including shipping, which makes this PSU a solid choice for system which doesn't require an obnoxious amount of power.

"Small computer power supplies that are entirely modular are the cornerstone of Seasonic's Focus Plus series. We are reviewing the Gold variant today rated at 550 watts that has a modern design and with hybrid silent fan control with a fluid dynamic bearing fan. Is the smallest PSU in the Focus Plus series making the cut?"

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