Corsair
CORSAIR RMx Series RM850x 850W ATX 3.1 Cybernetics Gold PSU Power Supply
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Seasonic · Power Supply
Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply
- 850W
- 80+ Gold
£146.49 In stock
Final price and delivery are shown at checkout.
- Checked for fit in our free PC builder
- Buy now takes you to the retailer to complete payment
- Price checked 2 Feb 2026
Specifications
| Wattage | 850W |
|---|---|
| Efficiency | 80 Plus Gold |
| Size | ATX |
| ATX 3.x | Yes |
| Brand | Seasonic |
| SKU | FOCUS-GX-850-V4 |
| Condition | New |
Specs are read from the product title and may be incomplete. Check the retailer page for the full list.
Will it fit your build?
- A 850W supply suits builds drawing up to about 680W.
Quick answers about the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply
What is the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply?
The Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply is a power supply from Seasonic. 850W · 80+ Gold.
What are the key specifications of the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply?
Wattage: 850W. Efficiency: 80 Plus Gold. Size: ATX. ATX 3.x: Yes.
Will the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply work in my PC build?
A 850W supply suits builds drawing up to about 680W. Add it to the PC builder to check it against the rest of your parts.
How much does the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply cost?
The latest price file (2 Feb 2026) lists the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply at £146.49. Prices change, so check the final price and delivery cost at checkout.
Is the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply in stock?
The latest price file (2 Feb 2026) lists it as in stock. Stock changes quickly, so confirm availability at checkout.
Where can I buy the Seasonic Focus GX-850 850W ATX 3.0 80 PLUS Gold PSU Power Supply?
Use the Buy now button on this page. It takes you to the retailer's product page, where you add the power supply to your basket and pay.
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