Quick overview from the supplier:
Power Supply ATX 850W Seasonic Focus GM-850 80+ Gold,120mm fan, Semi-modular, S2FC, Multi-GPU setup
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P/N: SSR-850FM
80 PLUS® Gold certified
Compact Size - 140 mm deep
Tight Voltage Regulation
Cable-free Connection Design
S3FC - Fanless until 30 % load
Multi-GPU setup
Gold plated connectors
80PLUS® Gold
Form Factor Intel ATX 12 V
Dimensions 140 mm (L) x 150 mm (W) x 86 mm (H)
Fan Size 120 mm
Fan Control S3FC - Fanless until 30 % load
Fan Bearing Fluid Dynamic Bearing
Modularity Fully Modular
Cable type Flat black cables
perating Temperature 0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)
MTBF @ 25 °C, excl. fan 100,000 hours
AC Input Full Range
Protection OPP, OVP, UVP, OCP, OTP, SCP
perating Temperature 0 - 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)
MTBF @ 25 °C, excl. fan 100,000 hours
AC Input Full Range
Protection OPP, OVP, UVP, OCP, OTP, SCP
https://seasonic.com/focus-plus-gold