£124.06 Original price was: £124.06.£117.96Current price is: £117.96.
£124.06 Original price was: £124.06.£117.96Current price is: £117.96.
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Product Description
CORSAIR RM850e Fully Modular Performance Power – ATX 3.1 & PCIe 5.1 Ready
Next-Gen Ready, Whisper-Quiet Operation
The RM850e supports the latest Intel® ATX 3.1 and PCIe 5.1 standards, built to endure GPU power excursions. Its modular cables reduce clutter, while the efficient fan curve and premium components ensure dependable, near-silent performance—even through multiple build cycles.
Compact, Quiet, and Efficient Power for Modern Builds
The RM850e delivers up to 90% efficiency with Cybenetics Gold certification, keeping your power consumption low and thermals under control. Its Zero RPM Fan Mode ensures near-silent operation during low loads, while its Cybenetics “A” noise rating proves its ultra-quiet performance. With a compact 140mm casing, it fits effortlessly into today’s enthusiast cases.
Efficient Power Delivery with Native GPU Support
The RM850e is designed to deliver clean, consistent power with Resonant LLC Topology and DC-to-DC conversion, ensuring high energy efficiency across various system loads. It includes a native 12V-2×6 GPU connector for seamless compatibility with Nvidia 40 Series graphics cards, eliminating the need for bulky adapters. Backed by a seven-year warranty, this power supply offers reliable performance that lasts through multiple builds, providing long-term peace of mind.
| Form Factor | ATX |
|---|---|
| Series | Corsair RM Series |
| Wattage | 850 W |
| Modular | Fully Modular |
| Compatibility | ATX12V v3.1, EPS12V 2.92, PCIe 5.1 |
| Connectors | 1 x ATX (24-pin), 2 x EPS / ATX 12V 8-pin (4+4), 1 x 12V-2×6 (12+4) Pin, 2 x 12V-2×6 to Dual 8-Pin (6+2), 1 x PCIe 8-Pin (6+2), 4 x SATA (4 Straight SATA), 4 x SATA / PATA (2 Straight SATA) (2 Straight PATA) |
| AC Input | 100-240V |
| Fan Type | 120mm Rifle Bearing Fan |
| Fan Bearing | Rifle Bearing |
| Noise | Low Noise – Cybenetics A Noise Rating, Zero RPM Fan Mode |
| Max Certification | Gold |
| Efficiency | Cybenetics Gold, Up to 90% |
| Additional Features | See Overview |
| Package Contents | Power Supply, 1 x 24-pin ATX (24-pin) Connector Cable, 2 x 8-pin ATX 12V/EPS12V (4+4-pin) Connector Cables, 1 x 8-pin PCIe (6+2-pin) Connector Cable, 1 x 600W 12V-2×6 (12+4-pin) Connector Cable, 1 x 12V-2×6 (12+4-pin) to dual 8-pin PCIe (6+2-pin) Cable, 6 x SATA Connectors, 2 x PATA Connectors |
| Weight/Dimensions | 1.530 kg, 150 x 140 x 86 mm |
| Package Weight | 2.9300 kg |
| Warranty | 7 Years |
| Full Box Quantity | 2 |
Other Options
Customer Reviews
39 reviews for Corsair 850W RMe Series RM850e PSU, Fully Modular, Cybenetics Gold, ATX 3.1, PCIe 5.1
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- 24-pin ATX 3.1
- 850W Wattage
- Fully-Modular
- Cybenetics Gold
CORSAIR RM850e Fully Modular Performance Power – ATX 3.1 & PCIe 5.1 Ready
Next-Gen Ready, Whisper-Quiet Operation
The RM850e supports the latest Intel® ATX 3.1 and PCIe 5.1 standards, built to endure GPU power excursions. Its modular cables reduce clutter, while the efficient fan curve and premium components ensure dependable, near-silent performance—even through multiple build cycles.
Compact, Quiet, and Efficient Power for Modern Builds
The RM850e delivers up to 90% efficiency with Cybenetics Gold certification, keeping your power consumption low and thermals under control. Its Zero RPM Fan Mode ensures near-silent operation during low loads, while its Cybenetics “A” noise rating proves its ultra-quiet performance. With a compact 140mm casing, it fits effortlessly into today’s enthusiast cases.
Efficient Power Delivery with Native GPU Support
The RM850e is designed to deliver clean, consistent power with Resonant LLC Topology and DC-to-DC conversion, ensuring high energy efficiency across various system loads. It includes a native 12V-2×6 GPU connector for seamless compatibility with Nvidia 40 Series graphics cards, eliminating the need for bulky adapters. Backed by a seven-year warranty, this power supply offers reliable performance that lasts through multiple builds, providing long-term peace of mind.
| Form Factor | ATX |
|---|---|
| Series | Corsair RM Series |
| Wattage | 850 W |
| Modular | Fully Modular |
| Compatibility | ATX12V v3.1, EPS12V 2.92, PCIe 5.1 |
| Connectors | 1 x ATX (24-pin), 2 x EPS / ATX 12V 8-pin (4+4), 1 x 12V-2×6 (12+4) Pin, 2 x 12V-2×6 to Dual 8-Pin (6+2), 1 x PCIe 8-Pin (6+2), 4 x SATA (4 Straight SATA), 4 x SATA / PATA (2 Straight SATA) (2 Straight PATA) |
| AC Input | 100-240V |
| Fan Type | 120mm Rifle Bearing Fan |
| Fan Bearing | Rifle Bearing |
| Noise | Low Noise – Cybenetics A Noise Rating, Zero RPM Fan Mode |
| Max Certification | Gold |
| Efficiency | Cybenetics Gold, Up to 90% |
| Additional Features | See Overview |
| Package Contents | Power Supply, 1 x 24-pin ATX (24-pin) Connector Cable, 2 x 8-pin ATX 12V/EPS12V (4+4-pin) Connector Cables, 1 x 8-pin PCIe (6+2-pin) Connector Cable, 1 x 600W 12V-2×6 (12+4-pin) Connector Cable, 1 x 12V-2×6 (12+4-pin) to dual 8-pin PCIe (6+2-pin) Cable, 6 x SATA Connectors, 2 x PATA Connectors |
| Weight/Dimensions | 1.530 kg, 150 x 140 x 86 mm |
| Package Weight | 2.9300 kg |
| Warranty | 7 Years |
| Full Box Quantity | 2 |

Lew (verified owner) –
Very satisfied, just a small scratch on arrival
Nina (verified owner) –
Delivered ahead of time and well packed
Louisa (verified owner) –
Installation was easy but needed a quick BIOS update
Margret (verified owner) –
Exactly what I needed for my gaming rig
Maximillia (verified owner) –
Runs fine, had to tweak settings a little
Odie (verified owner) –
Worked after a few restarts
Raymond (verified owner) –
Speed boost was immediately noticeable
Nathaniel (verified owner) –
Nice upgrade, software could be improved
Lula (verified owner) –
Works flawlessly with my setup
Odell (verified owner) –
Super fast delivery and the product works perfectly
Lauriane (verified owner) –
Helped speed up my PC noticeably
Madeline (verified owner) –
Had some issues during installation
Prudence (verified owner) –
Average results in benchmark tests
Queen (verified owner) –
Came with everything needed to get started
Martina (verified owner) –
Build quality is impressive, fan a bit loud
Maryse (verified owner) –
A must-have upgrade for any serious gamer
Mittie (verified owner) –
Everything works fine, but delivery could be faster
London (verified owner) –
Happy overall, just had to replace a missing screw
Marietta (verified owner) –
My FPS increased significantly after installation
Norwood (verified owner) –
Excellent packaging and genuine product
Mathilde (verified owner) –
This component exceeded my expectations
Olga (verified owner) –
Good choice for mid-range builds
Raheem (verified owner) –
Performance boost was noticeable
Ray (verified owner) –
Reliable, powerful, and works as expected
Oma (verified owner) –
Solid quality and very quiet in operation
Moshe (verified owner) –
Fan gets loud during gaming
Queenie (verified owner) –
Average performance, expected a bit more
Pedro (verified owner) –
Great customer support and fast dispatch
Lenora (verified owner) –
Mediocre speed, suitable for casual users
Leanna (verified owner) –
Great for gaming, just not future-proof
Monty (verified owner) –
Met my expectations but not blown away
Malcolm (verified owner) –
Build quality is just acceptable
Morris (verified owner) –
Really impressed with the durability
Libbie (verified owner) –
Happy with the product, minor noise under load
Manuela (verified owner) –
Very efficient and stays cool
Mac (verified owner) –
Not perfect but definitely worth the price
Raquel (verified owner) –
Stable and reliable so far, time will tell
Leonora (verified owner) –
Solid performance, just wish it came with more documentation
Porter (verified owner) –
Fits well in my case, tight clearance though