3D Game Man has posted a review on the Thermaltake ToughPower 550W Power Supply
The Thermaltake ToughPower 550W Power Supply offers enough power for most computer systems and does support NVIDIA SLI and ATI CrossFire setups. Although, I would recommend one of their newer ToughPower higher wattage Power Supplies with Active PFC for current SLI and CrossFire setups. This is to insure system stability. This Power Supply though does have affordability in its favor and a very quiet 120mm fan. If you are on a budget be sure to check this model out.Thermaltake ToughPower 550W Power Supply Review
