Order by 2pm Mon–Fri for despatch today on in-stock items
Free tracked UK delivery · 60-day returns · 12-month warranty
Seasonic

Seasonic CORE GX V4 850W 80 PLUS Gold ATX 3.1 Modular PSU with 120mm FDB Fan, Braided Cables & 7 Year Warranty, Black

Manufacturer part no. SRP-CGX851-A5A32SF EAN 4711173878476
99.8% positive from 109,000+ eBay buyers
SKU:
LU3-ACQ-RHR
UPC:
4711173878476
MPN:
SRP-CGX851-A5A32SF
Condition:
Brand New
Availability:
Usually despatched in 1–2 working days
£116.86
inc. VAT · VAT invoice included
Brand New
Factory sealed and unused, with the manufacturer's warranty. How we grade
In stock – usually despatched in 1–2 working days
Free tracked delivery to mainland UK.

Sold Out

12-month warrantyOn refurbished, open box & used
60-day returnsFree and easy if it isn't right
UK modelsUK keyboard & power supply unless stated
Tested in DerbyshireInspected, cleaned and fully tested
Frequently bought together:

Description

  • Wattage: 850W
  • Size/Version: ATX 3.1
  • Modular: Fully
  • SATA Connections: 6
  • Certification: Gold
  • Colour: Black
The Seasonic CORE GX 850W is a fully modular ATX 3.1 power supply designed for modern gaming PCs, workstations and performance systems. With 80 PLUS Gold certification, PCIe 5.1 support and native 12V-2x6 connectivity, it provides efficient and future-ready power delivery. Seasonic's OptiSink thermal design improves heat dissipation and airflow, while the 120mm Hydro Dynamic Bearing fan with Smart and Silent Fan Control balances effective cooling with low operating noise. Its compact 140mm chassis and black braided-pattern modular cables make it ideal for clean, modern system builds.

Key Features
80 PLUS Gold (90% efficiency at 50% system load).
ATX 3.1 and PCIe 5.1 support.
Native 12V-2x6 connectivity for modern graphics cards.
Fully Modular cable design.
120mm Hydro Dynamic Bearing (HDB) fan.
Smart and Silent Fan Control (S�FC).
Seasonic OptiSink thermal design for improved heat dissipation.
Comprehensive OCP, OPP, OTP, OVP, SCP and UVP protection.


Full Specification
Model:
CORE GX 850W ATX 3.1

Manufacturer Part Number:
SRP-CGX851-A5A32SF

Output Power:
850W continuous power

Efficiency:
80 PLUS Gold (90% efficiency at 50% system load)

Voltage Rails:
Single +12V rail

+12V Output:
70A / 840W

ATX Form Factor:
ATX/EPS

ATX Standard:
ATX 3.1

PCIe Standard:
PCIe 5.1

Cabling:
Fully Modular

Connectors:
1 x 20+4-pin ATX
2 x 4+4-pin CPU/EPS
1 x 12V-2x6 (12+4-pin)
3 x 6+2-pin PCIe
6 x SATA
3 x 4-pin Molex

Fan:
120mm Hydro Dynamic Bearing (HDB) fan

Fan Speed Control:
Smart and Silent Fan Control (S�FC)

Power Input:
100-240V AC, 50/60Hz

Operating Temperature:
0-50�C

Power Output:
DC outputs: +12V, +5V, +3.3V, -12V and +5VSB

Cable Set:
Individual black cables with braided pattern

Protection:
OCP - Over Current Protection
OPP - Over Power Protection
OTP - Over Temperature Protection
OVP - Over Voltage Protection
SCP - Short Circuit Protection
UVP - Under Voltage Protection

Special Features:
Seasonic OptiSink thermal design, native PCIe 5.1 12V-2x6 connectivity, compact 140mm chassis




Dimensions without cable (L x W x H), (mm)
140 x 150 x 86
View AllClose

Additional Information

Grade:
Brand New
Wattage:
850W
Efficiency Rating:
80 Plus Gold
Modular:
Fully Modular
Form Factor:
ATX
Condition:
New
Manufacturer part no.:
SRP-CGX851-A5A32SF
Our SKU:
LU3-ACQ-RHR
View AllClose