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Seasonic core gc-850 850w atx 3.1 psu 80+ gold non-modular 12v-2x6 pcie 5.1 japanese capacitors black

Product image: Seasonic core gc-850 850w atx 3.1 psu 80+ gold non-modular 12v-2x6 pcie 5.1 japanese capacitors black-null
Product image: Seasonic core gc-850 850w atx 3.1 psu 80+ gold non-modular 12v-2x6 pcie 5.1 japanese capacitors black-null
Product image: Seasonic core gc-850 850w atx 3.1 psu 80+ gold non-modular 12v-2x6 pcie 5.1 japanese capacitors black-null
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Seasonic core gc-850 850w atx 3.1 psu 80+ gold non-modular 12v-2x6 pcie 5.1 japanese capacitors black

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Description

Item No. 99f5431a-1f5e-4696-b9a7-9c9a3e2e212a
Seasonic Core GC-850 850W Power Supply 850W80+ GoldATX 3.1 / PCIe 5.112V-2x6 The Seasonic Core GC-850 is an 850 watt ATX power supply that brings trusted Seasonic build quality and modern-GPU compatibility to mainstream gaming builds. Supplied under part number SRP-CGC851-A5A32SF, it is fully compliant with the ATX 3.1 and PCIe 5.1 standards and includes a 12V-2x6 cable for the latest graphics cards, with 80 PLUS Gold efficiency, premium Japanese capacitors and a 7-year warranty. As a fixed-cab

Details

Seasonic Core GC-850 850W Power Supply

850W80+ GoldATX 3.1 / PCIe 5.112V-2x6

The Seasonic Core GC-850 is an 850 watt ATX power supply that brings trusted Seasonic build quality and modern-GPU compatibility to mainstream gaming builds. Supplied under part number SRP-CGC851-A5A32SF, it is fully compliant with the ATX 3.1 and PCIe 5.1 standards and includes a 12V-2x6 cable for the latest graphics cards, with 80 PLUS Gold efficiency, premium Japanese capacitors and a 7-year warranty. As a fixed-cable (non-modular) unit it keeps the price keen. Typically in stock with fast delivery across Cyprus.

Before you buy — fit & compatibility
This is a non-modular (fixed-cable) power supply, so its cables are permanently attached rather than detachable — plan for a little extra cable routing. The 12V-2x6 cable powers modern ATX 3.1 / PCIe 5.1 graphics cards directly, while traditional PCIe cables cover older cards. It uses a standard ATX mounting that fits most cases.

Best For

✓Mainstream and value gaming PCs
✓Modern GPU builds at a keen price
✓Single high-power graphics card systems
✓Reliable everyday workstations
✓First-time ATX 3.1 system builds
✓Builders who trust the Seasonic name

Key Features

 
ATX 3.1 & 12V-2x6
Built to the ATX 3.1 and PCIe 5.1 standards with a 12V-2x6 cable that powers the latest graphics cards directly, plus traditional PCIe cables for older GPUs.
 
80+ Gold Efficiency
Certified 80 PLUS Gold for strong efficiency under load, helping reduce wasted energy and heat compared with Bronze-rated units.
 
Premium Japanese Capacitors
A single +12V rail rated up to 70 A and premium Japanese capacitors deliver stable, reliable power that lasts in long-term use.
 
120mm Fan · S2FC Control
A 120 mm hydro-dynamic-bearing fan with Seasonic Smart & Silent Fan Control (S2FC) adjusts speed to load and temperature to keep noise down.

Technical Specifications

Identification
Part Number SRP-CGC851-A5A32SF
EAN / GTIN 4711173879114
MPN Core GC-850
Power
Maximum OuTPUt 850 W
Form Factor ATX (ATX 3.1)
Rail Design Single +12V rail (up to 70 A)
Efficiency 80 PLUS Gold
Cabling
Modularity Non-modular — fixed (fully wired) cables
GPU Connector 12V-2x6 — PCIe 5.1, powers modern GPUs directly
Capacitors Premium Japanese
Cooling
Fan 120 mm hydro-dynamic bearing
Fan Control S2FC — Smart & Silent Fan Control (thermally controlled)
Protection
Safety OVP / UVP / OPP / SCP / OTP
Physical
Colour Black
Warranty
Manufacturer Warranty 7-year limited

Frequently Asked Questions

Does the Core GC-850 support the latest GeForce RTX graphics cards?
Yes. It is ATX 3.1 and PCIe 5.1 ready with a 12V-2x6 cable, the power connector used by modern graphics cards, so you can power a current GPU directly. Traditional PCIe cables are also included for older cards.
Is this power supply modular?
No. The Core GC-850 is non-modular, so all cables are permanently attached. This fixed-cable design keeps the price lower than a modular unit while still delivering 80+ Gold efficiency.
Is 850W enough for a modern gaming PC?
For most single-GPU systems, yes. 850 W comfortably powers a high-end graphics card with a modern CPU, with headroom for storage and cooling.
What makes the Seasonic Core GC different from cheaper units?
It pairs 80+ Gold efficiency with premium Japanese capacitors, a single +12V rail and Seasonic Smart & Silent Fan Control, backed by a 7-year warranty — a step up in build quality from basic budget supplies.
Singular Expert Insight
The Core GC-850 is the value play in Seasonic's line-up: you get the brand's reputation for reliability, 80+ Gold efficiency, Japanese capacitors and a 7-year warranty at a price kept low by the fixed cables. It is a smart pick for a mainstream single-GPU build where every euro counts. If you want detachable cables for a tidier build, look at the modular Core GM or GX series; if you need higher efficiency, a Platinum-rated unit is the upgrade. Browse our full range of PC power supplies, or pair it with a new graphics card to complete your build.

Buyer’s Guide

Buy it if
You want trusted Seasonic quality with ATX 3.1, a 12V-2x6 cable and Japanese capacitors at a keen price, and do not mind fixed cables.
Skip it if
You want detachable modular cables or higher Platinum efficiency, or you run a flagship GPU that benefits from a larger 1000 W-plus unit.
Also consider
The modular Seasonic Core GM or GX for tidier builds, or a 1000 W unit if you plan to upgrade to a more power-hungry GPU.