Some other notable features common to the QFan series are overvolt, overcurrent and short protection, active PFC (power factor correction) and up to 85% efficiency. Accessories included with the Toughpower 650 are pretty standard fare: a manual, power cord and mounting screws. There is also a Key 3 case sticker, an 8-pin to 6-pin PCIe adapter, a rubber mounting sleeve and a resealable nylon storage bag of modular cables. The Key 3 Spirit idea is a marketing concept developed by Thermaltake that is designed to communicate the Quality, Performance and Reliability of their products.
The modular cables included with the QFan 650 provide enough connectors for up to three PCIe (1 8-pin and 2 6-pin), seven 4-pin molex, two 4-pin floppy, six 5-pin SATA and a combination 4/8-pin 12v motherboard cable. The power supply itself houses a single 140mm, non-LED fan that is installed without a traditional surrounding frame. This coupled with the special multi-directional air inlet slots in the case allow the QFan series to reach such a low advertised noise rating. The fan is a dual ball bearing unit rated for 120,000 hours MTBF and up to 93cfm, although undoubtedly much noisier than the advertised 17dBA at that level of airflow.
The finish on the Toughpower QFan power supply is sort of a semi-gloss, dark gunmetal gray. There's not a lot of reflection on the surface, but this also helps to hide fingerprints and smudges more easily. All of the cables are wrapped with black nylon mesh and sealed at the end with heat-shrink tubing. The main 20+4 ATX connector is hard-wired from the power supply, as is the 8-pin PCIe cable. The remaining cables are modular and can be attached at the same end, with color-coded connectors to differentiate between PCIe and other connections. The opposite end has a large, open mesh face with a standard power socket and on/off switch.
The specification label can be found on top of the Toughpower 650, where the UL identification E161451 identifies this model as being made by Channelwell.
Next let's install the Toughpower QFan 650 in my test system.