RMx SHIFT SERIES™
RM850x POWER SUPPLY
SIDE CONNECTOR INTERFACE FOR EASIER BUILDING

RM850x SHIFT 80 PLUS Gold Fully Modular ATX Power Supply
CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary patent-pending side cable interface to keep all your connections within easy reach, for exceptionally convenient 80 PLUS Gold efficient power.

SIDE MOUNTED CONNECTIONS
An innovative patent-pending side PSU panel with modular connections lets you comfortably plug cables into the side face of the PSU, making it easier to connect and manage your cables than ever before.

ATX 3.0 CERTIFIED
The ATX 3.0 standard demands a high level of reliability and power efficiency. While many CORSAIR PSUs meet these requirements, RMx SHIFT Series PSUs are formally certified for ATX 3.0 compliance.
PCIe 5.0 12VHPWR GPU cables included for use with modern graphics cards such as the NVIDIA® GeForce RTX™ 40 Series.

CORSAIR TYPE 5 MICRO-FIT CONNECTORS
Fully modular, CORSAIR Type 5 Gen 1 micro-fit PSU cables, so you only connect the cables your system needs while taking up less space.

140mm FAN WITH ZERO RPM MODE SUPPORT
A low-friction, fluid dynamic bearing 140mm fan with Zero RPM mode support ensures your PSU runs cool while staying virtually silent when not under high load.

80 PLUS GOLD CERTIFIED
Steady power output at up to 90% efficiency, and Cybenetics-certified for lower power consumption, less noise, and cooler temperatures.

105°C-RATED CAPACITORS
Built with 100% Industrial-grade, 105°C-rated Japanese electrolytic capacitors for unwavering power and reliability.

CASE COMPATIBILITY
The PSU and cables will fit in any PC case that supports ATX PSU format and is at least 210mm (8.3") wide. The PSU must also be accessible from the side when mounted in the case.

WORLD-CLASS SUPPORT
Our award-winning service means you can enjoy your gear worry-free.

Cooling
Fan diameter	5.51" (14 cm)
Number of fans	1 fan(s)
Fan location	Top
Cooling type	Active
Performance
On/off switch	Yes
Power supply unit (PSU) form factor	ATX
Silent mode	Yes
80 PLUS certification	80 PLUS Gold
Purpose	PC/server
ATX version	3.0
Bearing technology	FDB
Mean time between failures (MTBF)	100000 h
Supported motherboard form factors	ATX
Design
80 PLUS certification	80 PLUS Gold
Product colour	Black
Fan diameter	5.51" (14 cm)
Illumination	No
On/off switch	Yes
Number of fans	1 fan(s)
Fan location	Top
Cooling type	Active
Power
Total power	1200 W
AC input voltage	100 - 240 V
AC input frequency	47 - 63 Hz
Input current	15 - 7.5 A
Power Factor Correction (PFC) type	Active
Combined power (+3.3V)	150 W
Combined power (+12V)	1200 W
Combined power (+5V)	150 W
Combined power (+5Vsb)	15 W
Max output current (+3.3V)	20 A
Max output current (+12V)	100 A
Max output current (+5V)	20 A
Max output current (+5Vsb)	3 A
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit
Efficiency	90%
Ports & interfaces
Motherboard power connector	24-pin ATX
Number of SATA power connectors	16
Number of PATA power connectors	8
EPS power connector (8-pin)	No
Motherboard power cable length	24" (61 cm)
SATA power cable length	800 mm
PCI Express power connectors (6+2 pin)	8
ATX Power connector (24-pin)	Yes
PCI Express connector	Yes
Cabling type	Fully-Modular
EPS power connector (4+4 pin)	Yes
PCI Express power connectors (12+4 pin)	1
PCI Express power connectors (12+4 pin) cable length	650 mm
Packaging content
Cables included	AC, CPU, PATA, PCIe, SATA
Packaging data
Cables included	AC, CPU, PATA, PCIe, SATA
Technical details
Sustainability compliance	Yes
Compliance certificates	CE, UKCA
Certificates
80 PLUS certification	80 PLUS Gold