CORE
CORE GC ATX .1
850 W
750 W
650 W
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 and reliability that define every Seasonic power supply.
CORE GC ATX 3.1 Unboxing
次世代與傳統 GPU線材
Includes native 12V-2x6 and 2× 8-pin cables for maximum compatibility
針對PCIe .1 顯示卡進行優化
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.
完全符合PCIe 5.1 與ATX 3.1 標準
12V-2x6 Cable: Up to 450 W power delivery for the 750 W.
12V-2x6 Cable: Up to 600 W power delivery for the 850 W.
The CORE GC-650 complies with ATX 3.1 specifications but is supplied with traditional PCIe connectors instead of a 12V-2x6 cable.
全面支援舊版顯示卡
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.
Dual 8-pin PCIe connectors for broad compatibility
適用於前幾代的顯示卡
對於從舊系統升級的用戶而言，安裝過程相當簡易
Reliable support for legacy GPU power requirements
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.
規格如有變更，恕不另行通知。
650 W model meets ATX 3.1 requirements using standard PCIe 8-pin connectors (instead of 12V-2×6)
-
資料表
-
快速安裝指南
-
使用者手冊
-
RoHS 表格
規格如有變更，恕不另行通知。
常問問題
It means the PSU cables are permanently attached rather than detachable. You do not need to choose or connect modular cables during installation, but unused cables remain inside the case. If you prefer to connect only the cables you need, CORE GX is the fully modular alternative.
Yes. CORE GC-650 complies with ATX 3.1 specifications but uses traditional PCIe 8-pin graphics-card connectors. The 750 W and 850 W models add a native 12V-2×6 cable, so the cable supplied with the PSU depends on the wattage you choose. You can also browse our other ATX 3.1 and PCIe 5.1 power supplies.
Choose according to the complete system. The higher-wattage models are useful for more demanding graphics cards and CPUs, but wattage alone is not a reason to move from 650 W to 850 W. Connector requirements matter here as well because the 650 W version does not include native 12V-2×6. For more information on what PSU you should get, use our Wattage Calculator.
Both use fixed cables, come in 650 W, 750 W and 850 W, and support ATX 3.1. The main difference is efficiency certification: CORE GC is 80 PLUS Gold, while CORE BC is 80 PLUS Bronze. Both carry a 5-year manufacturer's warranty.
Its 140 mm length is relatively compact for an ATX PSU and can leave more room for drive cages, cables or other hardware. Fixed cables still need somewhere to be routed, though, so the available space inside the case should be checked before installation. Read our guide to PSU size and case cooling.