Thermaltake Toughpower QFan 650 A (W0163RU, 650W)
Although Thermaltake began as a developer of cooling systems, Thermaltake-branded power supplies are nothing new already. Thermaltake has been turning out power supplies for a few years, developing a few product series and introducing a number of individual models in this time.
Packaged into a large white box, this model is expected to differ from its opponents with incredibly quiet operation. The manufacturer makes this promise thanks to the special design of the fan called QFan. So, this PSU should make a good opponent to the Enermax MODU82+.
The first part of the QFan technology is that the PSU has horizontal slits around the perimeter opposite the sides of the fan. Otherwise, the PSU looks quite ordinarily, resembling the Purepower RX series from the same brand except that a thick punched-out fan grid is now replaced with a thin wire one.
The PSU features a modular design with seven connectors for power cables of HDDs, optical drives and CPU. Two cables are fixed: a mainboard cable and a graphics card cable with an 8-pin connector (you are supposed to use the included adapter if your graphics card has a 6-pin power plug only).
The interior design of the PSU copies the Purepower RX series. The real manufacturer is Channel Well (CWT). This company provides power supplies not only to Thermaltake but also to Corsair, Hiper, Gigabyte and other renowned brands.
The PSU is based on a CM6800G chip that combines PFC and main-regulator controllers. The load-bearing elements – transistors and diode packs – are distributed among three rather large heatsinks. One heatsink carries the components of active PFC. The second heatsink carries the transistors of the main switch. And the third heatsink carries the diode packs of the output rectifier.