Seasonic CORE GC-650 ATX 3.1 power supply unit

Seasonic CORE GC-650 ATX 3.1. Total power: 650 W, AC input voltage: 100 - 240 V, AC input frequency: 50/60 Hz. Motherboard power connector: 24-pin ATX, Motherboard power cable length: 55 cm, SATA power cable length: 600 mm. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Cooling type: Active, Fan diameter: 12 cm. Compliance certificates: RoHS, REACH, WEEE, CE, CB, CCC, cTUVus, BSMI, EAC, UKCA

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

Total power: 650 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Input current: 9 - 4.5 A
Combined power (+3.3V): 100 W
Combined power (+12V): 648 W
Combined power (+5V): 100 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 12.5 W
Max output current (+3.3V): 20 A
Max output current (+12V): 54 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 2.5 A
Power protection features: Over current, Over power, Under voltage, Over voltage, Short circuit, Overheating

Ports & interfaces

Motherboard power connector: 24-pin ATX
Motherboard power cable length: 55 cm
Number of SATA power connectors: 2
SATA power cable length: 600 mm
Peripheral (Molex) power connectors (4-pin): 1
Peripheral (Molex) power cable length: 600 mm
PCI Express power connectors (8-pin): 2
PCI Express power cable length: 55 cm
Feature: CPU power connector (4+4 pin)
CPU power cable length: 60 cm
Feature: ATX power connector (20+4 pin)
Cabling type: Non-Modular

Performance

80 PLUS certification: 80 PLUS Gold
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 3.1
Bearing technology: Ball bearing
Mean time between failures (MTBF): 100000 h

Design

Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
Feature: On/off switch

Operational conditions

Operating temperature (T-T): 0 - 40 °C
Operating relative humidity (H-H): 15 - 65%

Certificates

Compliance certificates: RoHS, REACH, WEEE, CE, CB, CCC, cTUVus, BSMI, EAC, UKCA

Weight & dimensions

Width: 150 mm
Depth: 140 mm
Height: 86 mm

Packaging data

Package type: Box

Technical details

Sustainability certificates: ENERGY STAR, ErP