The Thermaltake 850W QFan Toughpower Power Supply has an extremely quiet 140mm ball-bearing fan which decreases the noise level. It has an 850W stable continuous output and the single +12V rails provide stable and superior performance for PC system (combined loading of 62A). This power supply complies with ATX 12V 2.2 & EPS 12V 2.91 version and supports Dual Core CPU, Quad Core CPU, and Nvidia SLI and ATI Crossfire Multi-Core GPU technologies. It also supports three 6pin and three 8pin PCI-E connectors for future graphic card upgradeability.  The 850W QFan Power Supply comes with modularised cable management to eliminate clutter and improve airflow inside the case. The strict voltage regulation (±3%) provides steady voltage for the system. This power supply has Active Power Factor Correction (PF>0.99) and high efficiency (up to 85%), it has Over Current, Over Voltage, and Short Circuit protections and Safet/EMI Approvals (CE, CB, TUV, FCC, UL, CUL, and BMSI certified). The QFan power supply uses japanese made capacitors which promise the best reliability and has green power design that meets energy star, blue angel requirements.  The 850W QFan Power Supplies complies with RoHS and WEEE regulations.

Dimensions: 150mm x 160mm x 86mm (LxWxH)
P.G. Signal: 100-500ms
Hold-up Time: 16ms at 80% of full load at 230VAC input
Input Voltage: 100 VAC ~ 240 VAC
Input Frequency: 47 ~ 63Hz
MTBF: 120,000hrs minimum
Input Current: 115VAC/10.0A max. 230VAC/5.0A max.
Operating Temp: 10°C to 40°C
Storage Temp: -20°C to 70°C
Operating Humidity: 20% to 90%, non-condensing
Storage Humidity: 5 to 95%, non-condensing