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Corsair
Item#:
9SIAH2MKZY6788
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CORSAIR RMx shift Series RM850x Fully Modular ATX Power Supply - Modular Side Interface - native 12V-2x6 cable - ATX 3.1 & PCIe 5.1 Compliant - Fan-CP-9020299-NA
(1,046)
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Options:
ATX 3.1 80+ Gold (850W) Shift
ATX 80+ Gold (750W)
ATX 3.1 80+ Gold (1000W)
ATX 3.1 80+ Gold (850W)
ATX 3.1 80+ Gold (750W)
ATX 3.1 80+ Gold (850W) Shift
ATX 3.1 80+ Gold (1000W) Shift
ATX 3.1 80+ Gold (1200W) Shift
Innovative Easy-Access Connection Position: Modular connections on the side of the PSU mean easier access for your cables and simpler, cleaner
cable management.
Native 12V-2x6 GPU Cable: Easily power modern graphics cards such as the NVIDIA® GeForce RTX™ 50 Series.
Fully Modular Connectors: CORSAIR Type-5 PSU cables are smaller, giving you plenty of room to route your cables, while their modularity ensures
you only connect what your system needs.
Debossed PVC Cable Kit: Ultra flexible cable kit sets a new standard for cable management, with included low-profile combs making for a neater
look and easier overall build.
140mm Fluid Dynamic Bearing Fan: Utilizes a specially calculated fan curve for high performance, low noise, and superior reliability.
Zero RPM Fan Mode Support: At low and medium loads the cooling fan switches off entirely for near-silent operation.
Fan Speed Knob: Users have the freedom to adjust the fan speed to their own needs.
Cybenetics Gold Certified: Steady power output at up to 89% overall efficiency and certified for lower power consumption, less noise, and cooler
temperatures.
Intel® ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes.
105°C-Rated 100% Japanese Capacitors: Premium internal components
deliver unwavering power delivery and long-term reliability.
+
+
Overview
Specs
Reviews
(1,046)
2025 RMX SHIFT SERIES, RM850X SHIFT, 850 WATT, ATX 3.1, PCIE 5.1, CYBENETICS GOL
Learn more about the Detailed Specifications
General
Brand
CORSAIR
Series
RM850x Shift
Part Number
CP-9020299-NA
Details
Color
Black
Type
ATX / ATX 3.0 Compatible
Maximum Power
850 W
Main Connector
24Pin
Modular
Full Modular
Energy-Efficient
80 PLUS GOLD Certified
PSU Noise Level
Cybenetics A
Input Voltage
100 - 240 V
Input Frequency Range
47 - 63 Hz
Input Current
10A-5A
Output
+3.3V@20A, +5V@20A, +12V@70.8A, +5Vsb@3A
Dimension & Weight
Dimensions
6.3inch x 5.91inch x 3.39
Weight
3.34lbs
Additional Information
First Listed on Newegg
June 23, 2026
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Warranty
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Return Policies
Return for refund within: 15 days
Return for replacement within: 30 days
This item is covered by
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