
Seasonic Focus G12 GM power supply unit 850 W 20+4 pin ATX ATX Black
by Seasonic
£107.99from 3 retailers
GTIN04711173878513
EAN4711173878513
MPNSSR-850FM
Prices updated 17 Mar 2026
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Product Description
ATX 12 V. Semi-modular cables. 80 PLUS Gold Certified. 140 mm (L) x 150 mm (W) x 86 mm (H). The G12 GM Series is available in the standard ATX Form Factor and in wattages that are most common for a PC system. The Seasonic G12 GM-Series achieves 80 PLUS® Gold standard of providing at least 87 %, 90 % and 87 % power usage efficiency at 20 %, 50 % and 100 % operating loads, respectively. This efficiency, combined with Active Power Factor Correction, enables the G12 GM series power supplies to lessen energy waste, which translates into savings on the costs of energy costs for its users. In addition to being greatly efficient, the G12 GM units utilize the LLC resonant converter design, and the industry’s leading Smart and Silent Fan Control (S2FC).. 80 PLUS GOLD. The G12 GC achieves 80 PLUS Gold certification with its 90 % efficiency at 50 % system load.. S2FC - SMART AND SILENT FAN CONTROL. The intelligent thermal circuit feature is designed to find the optimal balance between the necessity to cool the components and the need to run the power supply in the most silent manner possible.. Power. Power protection features. Over current, Over voltage, Short circuit. Max output current (+5Vsb). 2.5 A. Max output current (-12V). 0.3 A. Max output current (+5V). 20 A. Max output current (+12V). 70 A. Max output current (+3.3V). 20 A. Combined power (+5Vsb). 12.5 W. Combined power (-12V). 3.6 W. Combined power (+5V). 100 W. Combined power (+12V). 840 W. Combined power (+3.3V). 100 W. Input current. 10 A. AC input voltage. 100 - 240 V. Total power. 850 W. Ports & interfaces. Cabling type. Semi-Modular. CPU power cable length. 60 cm. CPU power connector (4+4 pin). Yes. PCI Express power cable length. 70 cm. PCI Express power connectors (6+2 pin). 2. Peripheral (Molex) power cable length. 690 mm. Peripheral (Molex) power connectors (4-pin). 3. Number of SATA power connectors. 6. Motherboard power cable length. 55 cm. Motherboard power connector. 20+4 pin ATX. Performance. Mean time between failures (MTBF). 100000 h. Bearing technology. Sleeve. 80 PLUS certification. 80 PLUS Gold. Power supply unit (PSU) form factor. ATX. Purpose. PC. Design. On/off switch. Yes. Number of fans. 1 fan(s). Fan diameter. 12 cm. Cooling type. Active. Product colour. Black. General. Product family. Focus. Operational conditions. Operating temperature (T-T). 0 - 50 °C. Certificates. Certification. cTUVus, TUV, CB, CCC, BSMI, CE, FCC, RoHS, WEEE, ErP Lot 6, REACH. Packaging content. Cable tie(s) included. Yes. Cables included. AC, PCIe, Peripheral (Molex), SATA. Weight & dimensions. Height. 86 mm. Depth. 140 mm. Width. 150 mm. Packaging data. Package type. Box. manual pdf. leaflet
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