Seasonic Focus GX-850 V4 850W Fully Modular 80 PLUS Gold ATX 3.1 PSU

The Seasonic Focus GX-850 V4 is an 850W fully modular power supply built to ATX 3.1 and PCIe 5.1 standards, making it a strong match for the latest high-power graphics cards and processors. Its compact 140mm depth, 135mm fan and OptiSink technology help it deliver stable, efficient power in modern builds.

Key Features

• 850W total continuous power output
• 80 PLUS Gold efficiency
• Complies with ATX 3.1 and PCIe 5.1 standards
• Fully modular cabling with individual black cables in a braided pattern
• Includes a 12V-2x6 cable
• 135mm fan with Digital Hybrid Fan Control and Fluid Dynamic Bearing
• OptiSink technology
• Compact 140mm depth
• Full range AC input
• Protections: OCP, OPP, OTP, OVP, SCP, UVP

Specifications

• Model: SRP-FGX851-A5A32SF
• Form factor: ATX/EPS
• Fan size: 135mm
• Fan life expectancy: 50,000 hours at 40 C, 15% - 65% RH
• Operating temperature: 0 - 50 C
• MTBF: 100,000 hours at 25 C (excluding fan)
• AC input voltage: 100 V - 240 V
• AC input current: 11 - 5.5 A
• AC input frequency: 50 Hz - 60 Hz
• DC output: +3.3 V (20 A), +5 V (20 A), +12 V (70 A), -12 V (0.3 A), +5 VSB (3 A)
• Combined output: 100 W (+3.3 V and +5 V), 840 W (+12 V), 3.6 W (-12 V), 15 W (+5 VSB)
• Total continuous power: 850 W
• Safety and EMC: CB, CCC, CE, cTUVus, EAC, TUV, BSMI, FCC
• Environmental compliance: Energy Star, ErP Lot 6, REACH, RoHS, WEEE
• Warranty: 10 years