CORSAIR RM850x Shift (2025) Fully Modular ATX Power Supply – Modular Side Interface, Native 12V-2x6 Cable, ATX 3.1 & PCIe 5.1, Fan-Speed Control, 105°C-Rated Capacitors, Cybenetics Gold – Black
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
CORSAIR RMx SHIFT Series fully modular power supplies include a native 12V-2x6 cable for the latest GPUs, along with a side-mounted interface that keep connections easily accessible for Cybenetics Gold-certified efficiency. With ATX 3.1 compliance and an included debossed PVC cable kit, building and upgrading your PC is simpler than ever. Equipped with 105°C-rated Japanese capacitors for reliability, and backed by a ten-year warranty, RMx SHIFT ensures long-term performance. A 140mm fluid dynamic bearing fan operates quietly, with Zero RPM mode for silent low-load operation. An adjustable fan…
SpecPicks Verdict
SpecPicks classifies CORSAIR RM850x Shift (2025) Fully Modular ATX Power Supply – Modular… as a solid pick with broad community endorsement in the power supplies category, based on 12 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.5★ average across customer reviews
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 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
Full Specifications
| Brand | Corsair |
|---|---|
| Color | Black |
| Wattage | 850 watts |
| Model Name | RM850x SHIFT |
| Form Factor | ATX |
| Model Number | CP-9020299-NA |
| Connector Type | ATX |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 Watts |
| Item Dimensions | 6.3 x 5.91 x 3.39 inches |
| Mfr Part Number | CP-9020299-NA |
| Compatible Devices | Monitor |
| Power Supply Design | Full Modular |
Ready to buy?
CORSAIR RM850x Shift (2025) Fully Modular ATX Power Supply – Modular Side Interface, Native 12V-2x6 Cable, ATX 3.1 & PCIe 5.1, Fan-Speed Control, 105°C-Rated Capacitors, Cybenetics Gold – Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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