
Best selling Power Supplies PC from Seasonic
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1. Seasonic Focus GX-1000
The Seasonic Focus GX ATX power supply with its 1000 watts of rated power is perfect for gaming PCs with high-end components. It also supports the current PCIe 5.1 standard and is therefore also well equipped for the latest graphics cards. The power supply unit also has an 80 PLUS Gold certificate. At a load of 50%, it therefore achieves an efficiency of up to 90%. This results in less heat, less fan noise and significantly higher reliability.
Pro
- Dedicated 12v-2x6 cable for new GPU's
- White (for white build)
- Very short

2. Seasonic Core GX ATX 3
The updated Seasonic CORE GX ATX3 series complies with ATX 3.1 and PCIe 5.1 standards and includes four power ranges from 1000W to 650W in black and white colours. These power supplies are aimed at a wide range of PC enthusiasts and system developers and offer a good balance between cost and performance.Seasonic's 80 PLUS Gold certified Core GX line is fully modular and features black braided cables. These power supplies are solid performers for a variety of applications, combining a 120mm Hydro Dynamic Bearing fan with Seasonic's Smart and Silent Fan Control to ensure optimal cooling performance at the lowest possible noise levels.

3. Seasonic G12 GM-650
The Seasonic Focus Gold SSR-650FM power supply offers reliable and efficient performance for any PC or server setup. With an output power of 650 watts, this power supply ensures stable power output across different voltage levels and achieves an efficiency of up to 90 % at 50 % load. The semi-modular design allows for easy cable management, reduces cable clutter and improves airflow in the case. This power supply is equipped with an MTBF of 100,000 hours and functions such as overheat, overcurrent, overvoltage, overpower, undervoltage and short circuit protection to protect your components. In addition, the 120 mm fan uses fluid dynamic bearings for quieter operation and longer life. It meets multiple environmental standards, making it an energy-efficient choice that meets ENERGY STAR requirements.

4. Seasonic Core GX-650-V2 ATX3.1
The Seasonic Core GX-650-V2 is a powerful ATX power supply with a rated output of 650 watts, designed for modern PC systems. It meets the requirements of the ATX 3.1 standard and offers an 80 PLUS Gold certification, ensuring a high efficiency of up to 90 percent. This power supply features fully modular cable management, allowing for flexible and tidy wiring. The active cooling type with a 120 mm fan ensures efficient heat dissipation, while the OptiSink design optimizes cooling performance. The Core GX-650-V2 is ideal for users who value reliability and performance, whether for gaming, creative applications, or general computing tasks.
- 80 PLUS Gold certification for high energy efficiency
- Fully modular cable management for easy installation
- Active cooling with a 120 mm fan for optimal temperature control
- Compatible with ATX 3.1 standard for modern systems
- 7-year manufacturer's warranty for long-term reliability.

5. Seasonic Focus GX-850 V4
The Seasonic Focus GX White ATX 3.1 is designed to fulfil the needs of demanding PC users. Combining the latest technology with a stylish white design, this fully modular power supply offers reliable performance for both the latest hardware and aesthetically pleasing setups.
ATX 3.1 standard compliance: Supports higher power requirements and dynamic power peaks, especially for demanding graphics cards such as the NVIDIA RTX 40 series.
Fully modular design: Cables can be detached as required, facilitating cable management and improving airflow.
80 PLUS Gold certification: Outstanding energy efficiency ensures lower heat generation and reduced operating costs.
Silent operation: A 135 mm fluid dynamic bearing fan ensures effective cooling with low noise levels and long-lasting operation.
Pro
- Quiet when switched to the appropriate mode
- 10-year guarantee

6. Seasonic G12 GC-650
The Seasonic G12 GC-650 is a powerful PC power supply with a rated output of 650 watts and an 80 PLUS Gold certification, ensuring high energy efficiency of up to 90 percent. This power supply is designed in the ATX format and provides reliable power for modern computer components. With an active cooling system that includes a 120 mm fan, it ensures effective heat dissipation and quiet operation. The fixed cable strands allow for easy installation and clean cable management within the case. The G12 GC-650 is ideal for users who value quality and performance and are looking for a long-term solution for their PC needs. Additionally, it comes with a 5-year manufacturer support, providing extra security and confidence in the product quality.
- 80 PLUS Gold certification for high energy efficiency
- Active cooling with a 120 mm fan
- Fixed cable strands for easy installation
- 5 years of manufacturer support for added security.

7. Seasonic Focus GX-750
The newly upgraded Focus PX and GX series are the successors to the Focus PLUS series, which immediately became a bestseller in the power supply market after its launch in 2017. In 2019, Seasonic engineers have made improvements to the popular series, such as removing the inline capacitors on the supplied cables. In addition to the small change in the series name, the power supply's housing and packaging have also been updated to align with the OneSeasonic initiative concept.
S3FC - Fanless up to 30 % load
The industry's first advanced three-phase temperature control, patented by Seasonic, achieves an optimal balance between silence and cooling. This Hybrid Silent Fan Control works in three operating modes: Fanless Mode, Silent Mode and Cooling Mode.
Fluid dynamic bearing
High-performance fluid dynamic bearings (FDB) fans are designed to utilise the shock-absorbing properties of oil. They are extremely reliable and generate significantly less operating noise and heat than ball bearing fans. Lubrication of the bearing surface reduces friction and vibration, which lowers overall power consumption. Due to the effortless, quieter rotations and their robust design, this reliable fan technology also significantly increases the service life of the fan.
As the fan shaft rotates, high-pressure oil flows along the grooves of the bearing sleeve, creating a thin layer of lubrication between the bearing surfaces.
As the speed increases, the dynamic oil pressure also increases and the axle is lifted off the bearing to produce smooth, effortless rotations. The zigzag shape of the grooves helps to channel the lubricant efficiently and prevent leakage.

8. Seasonic Prime PX-1600 Modular
As part of the One Seasonic Initiative, the Prime TX, Prime PX, and Prime GX series have been introduced as successors to the Seasonic Prime and Prime Ultra series. The Prime series has always demonstrated outstanding performance and has become synonymous with technological excellence and quality over the years. This third generation of the Prime series was launched not only with a unified naming scheme but also with an updated overall design and connection cables. The Prime Platinum series achieves 80 PLUS Platinum certification with an efficiency of 92% at 50% system load. Seasonic's experience in developing the quietest and most efficient power supplies on the market has been incorporated into the development of the hybrid mode; a state-of-the-art fan control that allows the user to keep fan noise at the lowest possible level.
Pro
- Neat accessories
- 2 fan modes
- Platinum certificate

9. Seasonic Sea Sonic 750W Core SRP-CGX751-A5A32SF-W ATX 3.1 80+ Gold
The Seasonic 750W Core SRP-CGX751-A5A32SF-W is a powerful ATX power supply designed for modern PC systems. With a power output of 750 watts, it provides reliable power for demanding applications and gaming. The power supply meets ATX 3.1 specifications and is certified with an 80 PLUS Gold rating, ensuring a high efficiency of up to 90 percent. Its modular design allows for flexible cable management, keeping the interior of the case tidy and improving airflow. The 120 mm fan ensures effective cooling, while the OptiSink design optimizes heat dissipation. This power supply is an excellent choice for those who value performance, efficiency, and easy installation.
- 80 PLUS Gold certification for high energy efficiency
- Modular cable management for a clean installation
- Active cooling with a 120 mm fan
- OptiSink design for improved heat dissipation.

10. Seasonic Focus GX-750 V4
The Seasonic Focus GX White ATX 3.1 is designed to meet the needs of demanding PC users. This fully modular power supply combines the latest technology with a sleek white design, providing reliable performance for both the latest hardware and aesthetic setups.
Features:
- ATX 3.1 compliant: Supports higher power requirements and dynamic power peaks, especially for demanding graphics cards like the NVIDIA RTX 40 series.
- Fully modular design: Cables can be removed as needed, making cable management easier and improving airflow.
- 80 PLUS Gold certification: Excellent energy efficiency results in lower heat generation and reduced operating costs.
- Quiet operation: The 135 mm fluid-dynamic bearing fan ensures effective cooling at low noise levels and long-lasting performance.
- Long warranty: A 10-year manufacturer warranty reflects reliability and durability.

Seasonic Focus GX-750 V4
750 W