Corsair RM850x Shift (2025) vs Seasonic Focus PX-850
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Key differences
- •Seasonic Focus PX-850 has higher SATA connectors (10 vs 8)
- •Seasonic Focus PX-850 has lower PSU length (140 mm vs 160 mm)
Full spec comparison
Spec
Corsair RM850x Shift (2025)
Seasonic Focus PX-850
Power
Wattage850 W850 W
Efficiency rating80 Plus Gold80 Plus Platinum
ATX versionATX 3.1ATX 2.4
Modular cablingFully modularFully modular
Form factorATXATX
12V rail designSingle 12VSingle +12V
Connectors & Build
PCIe / GPU connectors1× 12V-2x6, 3× 8-pin4× 8-pin
CPU power connectors2× 8-pin2× 8-pin
SATA connectors810▲
Fan size140 mm135 mm
PSU length160 mm140 mm▲
Zero-RPM fan modeYesYes
Warranty10 years10 years