Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 2
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 3
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 4
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 5
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 6
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 7
Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply, photo 8
Seasonic

Seasonic G12 GC-850 850W 80+ Gold ATX Power Supply

SKU HC-628536MPN SSP-850RT2

  • 850 W
  • 80 Plus Gold
  • ATX

Highlights

  • 850W continuous output with 80 PLUS Gold certification
  • LLC resonant converter with Active PFC
  • Smart and Silent Fan Control (S2FC) with 120mm fan
  • One 12VHPWR and three 6+2-pin PCIe connectors
  • Six SATA and three 4-pin Molex connectors
  • Two 12V ATX/EPS CPU power connectors

Key specs

Wattage
850 W
Efficiency
80 Plus Gold
Fully modular
No
Form factor
ATX
Fan Size
120 mm
CPU Power Connectors 12V ATX/EPS
2
All specifications
$73.99
  • ≈ 0.0009689 BTC
  • ≈ 0.03267 ETH
  • ≈ 74.08 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 7 years
  • 30-day returns Unused items in original packaging
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Overview

An 850-watt ATX power supply with 80 PLUS Gold certification. Suitable for mainstream gaming or workstation builds requiring reliable efficiency and modern connector support.

Design and Build

The unit follows the standard ATX form factor measuring 150 mm wide, 86 mm tall, and 140 mm deep. A black chassis houses a 120 mm cooling fan managed by Seasonic's Smart and Silent Fan Control technology.

Efficiency and Performance

80 PLUS Gold rating guarantees at least 87 percent efficiency at 20 percent load, 90 percent at 50 percent load, and 87 percent at full load. The LLC resonant converter topology and Active Power Factor Correction reduce energy waste across the operating range.

Connectivity

Fixed cables provide two 12V ATX/EPS CPU connectors, one 12VHPWR PCIe connector, three 6+2-pin PCIe connectors, six SATA power connectors, and three 4-pin Molex connectors for drives and peripherals.

G12 GC-850 850W 80+ Gold ATX Power Supply specifications

General
BrandSeasonic
Manufacturer part no.SSP-850RT2
EAN4711173878544
Warranty7 years (manufacturer)
Fan Specifications
Fan Size120 mm
Power Supply
PSU FormatATX
Modular Power SupplyNo
Power Specifications
Total Power Output850 W
Internal Ports
CPU Power Connectors 12V ATX/EPS2
12VHPWR PCIe Power Connectors1
6+2 Pin PCIe Power Connectors3
SATA Power Connectors6
4 Pin Molex Power Connectors3
Efficiency Class
80PLUS Efficiency80 PLUS Gold
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Dimensions
Length / Depth140 mm
Width150 mm
Height86 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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