Corsair RM850x
850W, 80+ Gold, Fully Modular
Used listings on eBay UK
3-month move: −22.7% (£71.39 to £55.17)
Price history
Week of 19 Oct£53.48median of 6 salesSold £45 to £68
- Target Price £61
- Week with 3+ sales
- Fewer sales
- Single sale
Show as a table
| Week of | Median | Sales |
|---|---|---|
| 2 Feb 2026 | £72.86 | 1 |
| 16 Feb 2026 | £107.49 | 1 |
| 9 Mar 2026 | £28.81 | 1 |
| 30 Mar 2026 | £64.99 | 1 |
| 29 Jun 2026 | £73.54 | 4 |
| 6 Jul 2026 | £93.70 | 5 |
| 13 Jul 2026 | £71.40 | 3 |
| 20 Jul 2026 | £85.23 | 2 |
| 27 Jul 2026 | £70.94 | 2 |
| 3 Aug 2026 | £72.49 | 10 |
| 10 Aug 2026 | £70.24 | 5 |
| 17 Aug 2026 | £62.70 | 7 |
| 24 Aug 2026 | £67.05 | 13 |
| 31 Aug 2026 | £76.22 | 10 |
| 7 Sept 2026 | £75.10 | 11 |
| 14 Sept 2026 | £62.70 | 7 |
| 28 Sept 2026 | £56.45 | 13 |
| 5 Oct 2026 | £61.15 | 3 |
| 12 Oct 2026 | £52.70 | 7 |
| 19 Oct 2026 | £53.48 | 6 |
What the sales show
About 7 sales a week in the four weeks to 20 Oct.
Before you buy or sell a used RM850x
Sellers should state the release revision on any RM850x listing and avoid confusing it with the RM850x Shift, RM850e or non-x RM850. Check the label part number to tell the 2021 version apart from older 2018 stock.
Every original Corsair Type 4 modular lead should be included with this 850W 80+ Gold unit, as cables from other PSUs may not be pin-compatible. Newer graphics cards using 12VHPWR power need an adapter or a dedicated Corsair Type 4 cable.
Recent UK sales
- 20 OctCP-9020180/75-003445 Corsair RM850X Black Modular 850W PSU Power Supply20 Oct£54.99
- 20 OctCorsair RM850x 850w Modular PSU 80+ Gold Power Supply20 Oct£52.71
- 20 OctCorsair RM850x fully modular power supply20 Oct£68.31
- 20 OctCorsair RM850x 850W ATX Modular PSU Black 24-Pin PCIe CPU SATA20 Oct£54.25
- 19 OctCorsair RM850x 850W Modular ATX PSU Black 24-Pin 4+4 CPU 6+2 PCIe19 Oct£51.15
- 19 OctCORSAIR RM850x 850W POWER SUPPLY PSU19 Oct£45.00
- 18 OctCORSAIR RM SERIES....RM850x.....850 Watt.....MODULAR POWER SUPPLY UNIT18 Oct£31.00
- 17 OctCorsair RM850x 850W Modular ATX Power Supply PSU Black CP-902018017 Oct£24.42
- 16 OctCorsair RM850x 850W ATX Modular Power Supply Unit PSU Black CP-9020252-UK16 Oct£55.35
- 14 OctCorsair RM850x Power Supply PSU CP-9020180 850W continuous power, 80 PLUS Gold14 Oct£51.25
- 14 OctCorsair RM850x 850W 80+ Gold Certificated Fully Modular PSU14 Oct£52.70
- 14 OctCorsair RM850x 80 PLUS Gold 850W Fully Modular Power Supply 850Watt PSU14 Oct£59.89
- 12 OctCorsair RM850x Gold Fully Modular PSU - Cables Included12 Oct£65.19
- 11 OctCorsair RM850x 850W 80 Gold Fully Modular Power Supply (With Original Cables)11 Oct£58.24
- 10 OctCorsair RM850x - CP-9020200 - 850 Watt - 80 PLUS Gold Fully Modular - ATX PSU10 Oct£61.15

