The ST85F-PT is an 80 PLUS Platinum-certified power supply unit from Silverstone, rated for 850W maximum power draw. It has fully modular cabling, 92% peak efficiency, a single 12-volt rail, and a quiet 120mm fan for cooling. That fan is also adaptive, based on energy load, and turns off entirely at low power usage.
Model: Silverstone ST85F-PT
Specifications
| Maximum Power | 850 W |
| Peak Efficiency | 92 % |
| Efficiency Certification | 80 PLUS Platinum |
| Cooling System | Quiet 120mm Fan |
| Noise Level | 0-28 dB |
Power Distribution | |
| +3.3V rail | 22 amps |
| +5V rail | 22 amps |
| +12V1 rail | 70.9 amps |
Connectors | |
| Molex | 3 |
| SATA | 12 |
| Floppy | 1 |
| PCIe 8-Pin | 4 |
| CPU Power 8/4 pin | 2 |
| External Connector Type | C13 |
Dimensions | |
| Height | 86 mm (3.4 in) |
| Width | 150 mm (5.9 in) |
| Depth | 140 mm (5.5 in) |
| Net Weight | 2.5 kg (5.5 lbs) |
Input | |
| Voltage | 90~264 Vac |
| Frequency | 47~63 Hz |
