Silverstone Technology ST85F-GS-V2 850W ATX fully modular power supply

Power for demanding builds

The ST85F-GS-V2 delivers 850 W of continuous output from a single +12 V rail rated at 70.9 A. It is built for systems that need stable power for high-end graphics cards and overclocked processors. The 80 PLUS Gold certification confirms efficiency between 87 % and 90 % across the 20 % to 100 % load range. A 120 mm silent fan keeps noise around 18 dBA during typical operation.

Compact fully modular design

At 140 mm deep the unit fits cases where longer power supplies would block drive bays or radiators. Full modular cabling lets you connect only the leads you need, and the flat 24-pin cable folds tightly for clean routing. Six 8-pin or 6-pin PCIe connectors support multi-GPU configurations. Protection circuits cover over voltage, over current, over power, under voltage, over temperature and short circuit events.

ATX interface practical limits

The PSU accepts 90 V to 264 V at 47 Hz to 63 Hz, so it works on mains supplies worldwide without a voltage switch. MTBF is rated at 100000 hours at 40 °C ambient temperature. Voltage regulation stays within 2.5 % on the V2.0 revision, with low ripple and noise for stable rails. The 140 mm depth and ATX form factor define the physical space you must allocate in the chassis.