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.
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.
The Seasonic PRIME PX ATX 3.1 Series is built on top of all the great features of PRIME PX platform with added ATX 3.1 and PCIe 5.1 compatibility. Currently the 1600 W is equipped with native 12V-2×6 connectors and Digital Fan Control, and 105°C-rated Japanese electrolytic capacitors guarantee unwavering power delivery and long-term durability. All these qualities make this power supply perfect to welcome the newest high power graphic cards and processors on the market.The Seasonic PRIME ATX 3.0 Series power supplies were initially shipped with 12VHPWR cables. Following the update to the ATX 3.1 standard, we began replacing these with the new 12V-2×6 connectors.
During this transition period, customers may receive either 12VHPWR or 12V-2×6 cables in the box. We apologize for any inconvenience this may cause. Please note that availability may vary by region. Here is the planned schedule for the new version availability:
The Seasonic PRIME TX ATX 3.1 Series is built on top of all the great features of PRIME TX platform with added ATX 3.1 and PCIe 5.1 compatibility. Currently the 1600 W and 1300 W units are equipped with native 12V-2×6 connectors, Digital Fan Control, and 105°C-rated Japanese electrolytic capacitors guarantee unwavering power delivery and long-term durability. All these qualities make these power supplies perfect to welcome the newest high power graphic cards and processors on the market. The Seasonic PRIME ATX 3.0 Series power supplies were initially shipped with 12VHPWR cables. Following the update to the ATX 3.1 standard, we began replacing these with the new 12V-2×6 connectors.
During this transition period, customers may receive either 12VHPWR or 12V-2×6 cables in the box. We apologize for any inconvenience this may cause. Please note that availability may vary by region. Here is the planned schedule for the new version availability:
The new VERTEX Series units will provide 1200 W / 1000 W / 850 W and 750 Watts of true power in Platinum level of efficiency, with all the best features you can expect from a Seasonic power supply:
Fully compatible with ATX 3.1 and PCIe 5.1 standards.
Full modularity for the best cable management options.
Added 12V-2×6 cable to comply with the new graphic cards.
135mm Fluid Dynamic Bearing (FDB) fan for quiet operation.
Seasonic Hybrid Silent Fan Control for optimal cooling.
12 years warranty – our commitment to high quality.
Note: Seasonic VERTEX Series PSUs were initially shipped with 12VHPWR cables. Following the ATX standard update, we transitioned to 12V-2×6 connectors. During this period, customers may receive either cable, depending on the region. The updated VERTEX version is expected later in 2025 for Europe and North America. We apologize for any inconvenience.
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.
Product Specifications Product No. SST-AT750R-BF Model (safety certification) SST-AX0750FCBR-A Color Black (lead-free paint) Max. DC Output 750W Load Range Output +3.3V +5V +12V +5VSB -12V...
Our new NEG M ATX 3.1 Series power supplies meet the high standards of the ATX 3.1 standard for reliability and power efficiency, which are formally certified for ATX 3.1 compliance, ensuring the utmost level of quality and performance. The included PCIe 5.1 12V-2x6 GPU cable enables seamless compatibility with modern graphics cards, such as the NVIDIA® GeForce RTX™ 50 Series.
Introducing our NE1300G M ATX 3.1 power supply, designed with the ultimate performance and stability in mind for the gaming and enthusiast market. With advanced features like ATX 3.1 and high-quality JP capacitors, unparalleled stability, and 80 PLUS® Gold-certified efficiencies, you can expect peak performance from your system. The PhaseWave™ Design ensures steady power output, while the 120mm FDB Silence Fan offers quiet cooling. The power supply is also 100% Modular, allowing for easy cable management and customization. The Zero RPM Manager enables advanced thermal control, ensuring the optimal balance between silent operation and efficient cooling. The CircuitShield™ suite of industrial-grade protections provides safe and reliable power delivery in any environment. The NE1300G M ATX 3.1 is the perfect choice for building a reliable and efficient PC system for gamers and professionals