Target Components

Seasonic Core GC-850 ATX3

CORE GC – Power Made Simple


The Seasonic CORE GC Series delivers reliable performance and modern ATX 3.1 compliance at an essential value. Designed for everyday builders and gamers, it embodies Seasonic's trusted quality in a compact 140 mm design with a durable scratch-resistant finish. With 80 PLUS Gold efficiency, Smart and Silent Fan Control (S2FC), and a 120 mm HDB fan, it ensures cool, quiet, and stable operation. The CORE GC-750 and CORE GC-850 include a 12V-2×6 PCIe Gen 5.1 cable, ready for the latest GPUs, while the CORE GC-650 meets all ATX 3.1 requirements with traditional connectors. Built on decades of engineering excellence, the CORE GC Series delivers the quiet efficiency, reliability, and durability that define every Seasonic power supply.

Next-Gen and Legacy GPU Cable
Includes native 12V-2x6 and 2x 8-pin cables for maximum compatibility

Optimized for PCIe 5.1 GPUs
The CORE GC ATX 3.1 power supply features a native 12V-2x6 cable designed for the latest PCIe 5.1 graphics cards. With support for up to 600 W of power delivery, this cable ensures safe and stable performance for NVIDIA RTX 40 and 50 Series and future high-end GPUs. Enjoy a clean, efficient setup that's fully compliant with ATX 3.1 and PCIe 5.1 standards.

Full Support for Legacy GPUs
To ensure compatibility with older GPUs, the CORE GC ATX 3.1 includes a 2× 8-pin PCIe cable. It delivers reliable power up and works seamlessly with graphics cards from previous generations. This cable makes it easy to upgrade your PSU without changing your GPU—perfect for users who want next-gen power with legacy support.

S2FC - Intelligent Fan Control Technology
The Smart and Silent Fan Control (S2FC) system intelligently regulates the power supply's fan speed to achieve the ideal balance between cooling efficiency and silent operation. By dynamically adjusting the fan curve according to temperature, it ensures that your system remains quiet during low-to-medium usage and effectively cooled when performance demands increase.

Specifications

80PLUS
Gold

Cybenetics Efficiency Level
TBA

Cybenetics Noise Level
TBA

Form Factor
ATX/EPS

Fan Information
Fan Size 120 mm
Fan Control S²FC
Fan Bearing Hydro Dynamic Bearing

Life Expectancy
40,000 hours at 40C, 15 % - 65 % RH

Cable Information
Modularity Fixed Cables
Cable type Individual Black Cables with Braided Pattern

Electrical Features
Operating Temperature 0 - 40 C
MTBF @ 25 C, excl. fan 100,000 hours
AC Input Full Range
Protection OCP, OPP, OTP, OVP, SCP, UVP

Safety and Environmental
Safety and EMC CE, CB, CCC, cTUVus, TUV, BSMI, EAC, UKCA

Environmental Compliance
Energy Star, RoHS, REACH, WEEE, ErP Lot 6

Warranty
5 Years


Power Output

AC Input
100 V - 240 V
9 - 4.5 A
50 Hz - 60 Hz

DC Output
Rail +3.3 V +5 V +12 V -12 V +5 Vsb
Maximum Power 20 A 20 A 54 A 0.3 A 2.5 A
100 W 648 W 3.6 W 12.5 W
Total continuous power 650W