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  • 650 W 100 - 240 V 50/60 Hz
  • Motherboard power connector: 24-pin ATX
  • PC ATX 80 PLUS Gold
  • Active 12 cm
  • Black

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 2× 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.

Power
Power protection features Over current, Over power, Under voltage, Over voltage, Short circuit, Overheating
Max output current (+5Vsb) 2.5 A
Max output current (-12V) 0.3 A
Max output current (+5V) 20 A
Max output current (+12V) 54 A
Max output current (+3.3V) 20 A
Combined power (+5Vsb) 12.5 W
Combined power (-12V) 3.6 W
Combined power (+5V) 100 W
Combined power (+12V) 648 W
Combined power (+3.3V) 100 W
Input current 9 - 4.5 A
AC input frequency 50/60 Hz
AC input voltage 100 - 240 V
Total power 650 W
Ports & interfaces
Cabling type Non-Modular
ATX power connector (20+4 pin) Yes
CPU power cable length 60 cm
CPU power connector (4+4 pin) Yes
PCI Express power cable length 55 cm
PCI Express power connectors (8-pin) 2
Peripheral (Molex) power cable length 600 mm
Peripheral (Molex) power connectors (4-pin) 1
SATA power cable length 600 mm
Number of SATA power connectors 2
Motherboard power cable length 55 cm
Motherboard power connector 24-pin ATX
Performance
Mean time between failures (MTBF) 100000 h
Bearing technology Ball bearing
ATX version 3.1
80 PLUS certification 80 PLUS Gold
Power supply unit (PSU) form factor ATX
Purpose PC
Design
On/off switch Yes
Number of fans 1 fan(s)
Fan diameter 12 cm
Cooling type Active
Product colour Black
Operational conditions
Operating relative humidity (H-H) 15 - 65%
Operating temperature (T-T) 0 - 40 °C
Certificates
Compliance certificates RoHS, REACH, WEEE, CE, CB, CCC, cTUVus, BSMI, EAC, UKCA
Weight & dimensions
Height 86 mm
Depth 140 mm
Width 150 mm
Packaging data
Package type Box
Technical details
Sustainability certificates ENERGY STAR, ErP