Thermaltake Toughpower 550W PSU
 

The Thermaltake Toughpower 550W PSU is a totally silent and powerful PSU.
With the dual 12V rails of power at 38A of output, it will support many
peripheral devices without any problems. Furthermore, this PSU is equip
with silent 120mm cooling fan, it will be even better if the 120mm fan is
a LED fan. The operation noise level was very silent as well. This PSU is
ready with the SLI, Cross-Fire, and Dual Core CPU support...