Corsair RM850x
Corsair RM850x (2021) is a fully modular 850W 80+ Gold ATX PSU for high-end builds, with 10-year warranty and optional 12VHPWR cable but no native ATX 3.x.
As an Amazon Associate, GixCore earns from qualifying purchases.
Product overview
Corsair’s RM850x is the 850 W model from the RMx (2021) refresh of the long‑running RMx family (SKU CP-9020200-NA), introduced in 2021. It’s a high_end‑tier PSU: 80+ Gold efficiency, fully modular cabling, and an ATX form factor for mainstream to high‑end desktop builds—meant to deliver dependable power without paying for newer ATX 3.x extras. At 850 W it fits single‑GPU high‑end rigs with some headroom, while fully modular Type‑4 cables aid clean assembly and upgrades; Corsair backs it with a 10‑year warranty. This 2021 revision is ATX12V v2.4 and ships without a native 12VHPWR lead, though Corsair offers a compatible 12VHPWR cable for RMx 2021 units. A notable touch is its 135 mm magnetic‑levitation fan.
- mid-range gaming
- high-end GPU builds
- headroom/overclocking
Product highlights
- Fully modular, so you only connect the cables that your system needs.
- A 135mm ML fan utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability.
- EPS12V connector for compatibility with modern graphics cards and motherboards.
- 100% Industrial-grade, 105°C rated Japanese capacitors ensure unwavering power and reliability.
Specifications
- Wattage
- 850 W
- Efficiency
- 80 + Gold
- Modular
- Yes
- Eco Mode
- No
- Form factor
- ATX
Compatible Motherboards
B450M PRO-M2 Max
Prime Z390-P
Z690 AORUS PRO
B550M DS3H AC
TB360-BTC PRO 2.0
TB360-BTC D+
TUF Gaming X570-Plus (Wi-Fi)
ROG Strix B550-F Gaming WiFi II
MAG B550 Tomahawk MAX WiFi
TUF Gaming Z790-Plus WiFi
Z790 AORUS Elite AX
