CORSAIR HX850
CORSAIR HX850 (2017) is an 850W, 80 PLUS Platinum, fully modular ATX PSU with Zero RPM fan and 10‑year warranty—built for high-end GPU builds and headroom.
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Product overview
Corsair’s HX850 debuted on January 5, 2017 at CES as part of the HX Series Platinum refresh, slotting into the long‑running HX family above Corsair’s Gold‑rated lines. ([corsair.com](https://www.corsair.com/newsroom/press-release/corsair-powers-up-ces-2017-with-new-hx-and-tx-m-series-psus-and-corsair-bulldog-2))
It’s an enthusiast‑tier unit: an 850 W, fully modular, 80 PLUS Platinum ATX PSU meant to deliver quiet, reliable power for demanding PCs without jumping to 1 kW. Good for high-end GPU builds and headroom/overclocking in mainstream towers. Notable capabilities include a 10‑year warranty, Zero RPM fan mode, two EPS and six 8‑pin PCIe connectors, and an ATX12V v2.4 design without native 12VHPWR; uniquely, it offers a switch to toggle single or multi‑rail +12V operation. ([corsair.com](https://www.corsair.com/us/en/p/psu/cp-9020138-na/hx-series-hx850-850-watt-80-plus-platinum-certified-fully-modular-psu-cp-9020138-na))
- high-end GPU builds
- headroom/overclocking
- mid-range gaming
Product highlights
- 80 plus Platinum runs cooler and uses less power than less efficient power supplies
- Fully modular allows user to only use the cables they need for a cleaner looking build with better airflow
- 10-Year Backed by CORSAIR legendary technical support and customer service
- 135mm FDB fan with Zero RPM mode virtually silent operation at low loads
Specifications
- Wattage
- 850 W
- Efficiency
- 80 + Platinum
- 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
