Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black

Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black

Brand Corsair

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£144.80

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2 offers at 2 retailers

Listed since 7 April 2026

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Description

Fully modular, Type-5 connectors. Cybenetics Gold-certified. ATX 3.1 compliant, supporting PCIe 5.1. Zero RPM Fan Mode for near-silent operation at lower loads. Power your next build with a CORSAIR RMx Series fully modular PSU for quiet, Cybenetics Gold-certified efficient performance.. Power. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit. Efficiency. 90%. Max output current (+5Vsb). 3 A. Max output current (+5V). 20 A. Max output current (+12V). 70.8 A. Max output current (+3.3V). 20 A. Combined power (+5Vsb). 15 W. Combined power (+5V). 150 W. Combined power (+12V). 849.6 W. Combined power (+3.3V). 150 W. Input current. 10 - 5 A. AC input frequency. 47 - 63 Hz. AC input voltage. 100 - 240 V. Total power. 850 W. Ports & interfaces. Cabling type. Fully-Modular. PCI Express power connectors (12+4 pin). 1. PCI Express power connectors (6+2 pin). 3. EPS power connector (4+4 pin). Yes. EPS power connector (8-pin). No. Peripheral (Molex) power connectors (4-pin). 2. Number of PATA power connectors. 3. Number of SATA power connectors. 8. Motherboard power cable length. 61 cm. Motherboard power connector. 24-pin ATX. Performance. Silent mode. Yes. ATX version. 3.1. 80 PLUS certification. 80 PLUS Gold. Power supply unit (PSU) form factor. ATX. Purpose. PC/Server. Design. Illumination. No. Number of fans. 1 fan(s). Cooling type. Active. Product colour. Black. Packaging content. Cable tie(s) included. Yes. Cables included. AC. Certificates. Compliance certificates. Low Voltage Directive (LVD), RoHS, UKCA. Weight & dimensions. Weight. 3.28 kg. Height. 86 mm. Depth. 160 mm. Width. 150 mm

Full specifications

Marque Corsair
Référence fabricant cp9020270uk

Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black in 2026: still the right choice?

The Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black is one of the most searched products in the Informatique category in 2026. Offered by Corsair, it is aimed at those looking for a reliable product at the best price. Our comparison tool lists all available offers from partner retailers to help you make the right choice without overspending. Comparison is free and requires no registration. In a few seconds, you can access all current offers to find the most competitive price.

Buy the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black now or wait?

With the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black, Corsair delivers a quality level consistent with its market positioning. This product suits both newcomers and regular users of the Informatique category. Its quick setup and reliable performance make it a recommended choice for anyone looking to invest in durable equipment without facing technical complications in the first weeks of use.

Value for money analysed in 2026

At £144.8, the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black offers value for money consistent with its positioning in the Informatique category. Corsair maintains a consistent quality level across this range, justifying the investment at this price. Compare with other available offers on our comparison tool to ensure you get the best rate at the time of purchase. The Corsair 3500X Midi Tower White from the same range may also interest you for comparison.

Serious alternatives to consider

If the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black does not exactly match your expectations, the Informatique category offers other options to explore. Our comparison tool lists all available products with their prices in real time. Filter by budget, brand or availability to find the most suitable alternative for your situation. The Corsair CC-9011255-WW computer case Midi Tower Black is another reference from the same brand to consider.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 384300 £
Mid-range384300 £ to 896710 £
High-endOver 896710 £

The Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black is available from several trusted retailers. Always check stock availability and delivery times before finalising your order to avoid any unpleasant surprises. On Compiral, offers showing "In stock" can be delivered quickly, often within 2 to 5 working days depending on the retailer and your delivery address.

Frequently asked questions about Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black

Is delivery free for the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black at all retailers?

Free delivery is not guaranteed for the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

How do I return the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black worth its price in 2026?

In 2026, the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black is listed from £144.8 at our partner retailers. This price is consistent with the positioning of Corsair in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.

What warranty does the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black come with?

The Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black generally comes with a manufacturer warranty of 1 to 2 years depending on the retailer. In addition to the commercial warranty from Corsair, statutory consumer rights apply to all purchases. Check the warranty conditions directly on the retailer's page before finalising your order.

Is the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black in stock?

Stock availability for the Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Informatique category.

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