The updated Seasonic CORE GX ATX 3.1 Series complies with the latest ATX 3.1 and PCIe 5.1 standards and includes four output ranges from 1000 W to 650W in both black and white colors. Catering to a broad spectrum of PC enthusiasts and system builders, these power supplies provide a fine balance between cost and performance. The 80 PLUS® Gold certified Seasonic’s Core GX line is a fully modular designequipped with black cables featuring abraided pattern. These power supplies are solid performersfor a large range of applications, wherea 120 mm Hydro Dynamic Bearing fanis combined with Seasonic’s Smart and Silent Fan Control to ensure the optimal cooling performance at the lowest possible noise level.
New Seasonic OptiSink™ Design
The overall quality and reliability of the new CORE GX ATX 3.1 Series has been greatly improved by a brand-new PCB (Printed Circuit Board) layout and the implementation of automated surface mount technology during production, which minimizes human production errors. By using a redesigned PCB combined with smaller MOSFET and heat sink components, the internal space within the power supply was increased to enhance heat dissipation and airflow to result in better component cooling.
Optimized for PCIe 5.1 GPUs
The CORE GX 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 600W 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.
The updated Seasonic CORE GX ATX 3.1 Series complies with the latest ATX 3.1 and PCIe 5.1 standards and includes four output ranges from 1000 W to 650W in both black and white colors. Catering to a broad spectrum of PC enthusiasts and system builders, these power supplies provide a fine balance between cost and performance. The 80 PLUS® Gold certified Seasonic’s Core GX line is a fully modular designequipped with black cables featuring abraided pattern. These power supplies are solid performersfor a large range of applications, wherea 120 mm Hydro Dynamic Bearing fanis combined with Seasonic’s Smart and Silent Fan Control to ensure the optimal cooling performance at the lowest possible noise level.
New Seasonic OptiSink™ Design
The overall quality and reliability of the new CORE GX ATX 3.1 Series has been greatly improved by a brand-new PCB (Printed Circuit Board) layout and the implementation of automated surface mount technology during production, which minimizes human production errors. By using a redesigned PCB combined with smaller MOSFET and heat sink components, the internal space within the power supply was increased to enhance heat dissipation and airflow to result in better component cooling.
Optimized for PCIe 5.1 GPUs
The CORE GX 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 600W 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.
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.
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.
The Seasonic CORE BC 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® Bronze efficiency, Smart and Silent Fan Control (S2FC), and a 120 mm HDB fan, it ensures cool, quiet, and stable operation. The CORE BC-750 and CORE BC-850 include a 12V-2×6 PCIe Gen 5.1 cable, ready for the latest GPUs, while the CORE BC-650 meets all ATX 3.1 requirements with traditional connectors. Built on decades of engineering excellence, the CORE BC Series delivers the quiet efficiency, reliability, and durability that define every Seasonic power supply.
The Seasonic CORE BC 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® Bronze efficiency, Smart and Silent Fan Control (S2FC), and a 120 mm HDB fan, it ensures cool, quiet, and stable operation. The CORE BC-750 and CORE BC-850 include a 12V-2×6 PCIe Gen 5.1 cable, ready for the latest GPUs, while the CORE BC-650 meets all ATX 3.1 requirements with traditional connectors. Built on decades of engineering excellence, the CORE BC Series delivers the quiet efficiency, reliability, and durability that define every Seasonic power supply.
MB 24/20-pin x 1
CPU 4+4-pin x 2
PCI-E 16-pin x 1 (both PSU & component side)
PCI-E 8-pin x 4
SATA x 5
PERIPHERAL x 4
Package Contents
Power Cord x 1
Motherboard Power Cable x 1 (610mm)
CPU Cable x 2 (650mm)
PCI-E Gen 5 16-pin Cable x 1 (675mm)
PCI-E (16-pin to 8-pin-8-pin) Cable x 1 (675mm)
PCI-E 1-to-1 Cable x 2 (675mm)
SATA 1-to-2 Cable x 1 (400+120mm)
SATA 1-to-3 Cable x 1 (400+120+120mm)
Peripheral 1-to-4 Cable x 1 (400+150+150+150mm)
TUF Gaming Cable Tie x 3
User Manual x 1
Weight
2.48kg (single PSU)
0dB Technology
Supported. The fan shuts off entirely when the PSU is under certain load
0dB Fan Button
No. The product operates in 0dB mode by default. The fan will only spin up when the system reaches a certain load.
16-pin PCIe cable * 4 support PCIe Gen 5.0 graphic cards
ATX 3.1 and PCIe Gen 5.0 ready
Server-grade Ultra Durable
Main Japanese capacitors
Enhanced thermal solution
140mm smart double ball bearing fan
OVP/OPP/SCP/UVP/OCP/OTP protection
80 PLUS Platinum certified
16-pin PCIe cable * 4 support PCIe Gen 5.0 graphic cards
Equipped with two PCIe 16pin to PCIe 16pin connectors, it supports up to two high-end graphics cards simultaneously, providing each card with a robust 600W power supply to meet demanding high-performance computing needs. Additionally, it features two two 8pin to PCIe 16pin connectors, enabling simultaneous support for four PCIe Gen 5.0 graphics cards, with each card receiving an independent 300W power supply to fully satisfy multi-card computing requirements.
Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX Series has been upgraded to comply with the ATX 3.1 and PCIe 5.1 standards. It offers a complete range of power supplies from 750W to 1000W, all within a compact 140mm depth. Each unit features a 135mm fan, a 12V-2×6 cable, and our new OptiSink technology. These units are designed to be perfect allies in powering the latest high-power graphics cards and processors available on the market.
Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX Series has been upgraded to comply with the ATX 3.1 and PCIe 5.1 standards. It offers a complete range of power supplies from 750W to 1000W, all within a compact 140mm depth. Each unit features a 135mm fan, a 12V-2×6 cable, and our new OptiSink technology. These units are designed to be perfect allies in powering the latest high-power graphics cards and processors available on the market.