Best selling Power Supplies PC from Seasonic
On this page you’ll find a ranking of the best Power Supplies PC from Seasonic. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.
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.
2. Seasonic Focus GX-850 V4 ATX3.1
The revised FOCUS PX and GX series is the successor to the FOCUS PLUS series, which quickly became one of the most popular power supplies on the market after its launch in 2017. In 2019, Seasonic engineers made several improvements to the successful series, such as removing the inline capacitors from the included cables. In addition to the name change of the series, the power supply casing and packaging were also redesigned to better reflect the concept of the OneSeasonic initiative.
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 Focus SPX (2021)
The Seasonic FOCUS SPX (2021) is a high-quality, compact power supply unit specifically designed for SFX and SFX-L cases. This power supply combines top-notch performance, energy efficiency, and quiet operation, making it an excellent choice for modern compact PC solutions. The Seasonic FOCUS SPX (2021) is available in various wattages (650W and 750W) and includes an SFX-L to ATX adapter, ensuring compatibility with a wider range of cases.
Key features:
• 80 PLUS Platinum certification: Exceptional energy efficiency reduces heat loss and saves power.
• Compact design: Fits perfectly into small computer form factors (SFX cases).
• Fully modular cabling: User-friendly cabling system helps keep the build tidy and improves airflow.
• Hybrid Silent Fan Control: Allows for near-silent operation under lighter loads while providing stable cooling under heavy use.
5. 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.
6. Seasonic Prime PX ATX 3.1
When choosing a power supply, it is crucial to assess the power required for current and future components in your system. The Seasonic PRIME PX-2200 is a robust power supply that can safely power up to four RTX 4090 graphics cards thanks to its compliance with ATX 3.1 and PCIe 5.1 specifications. Designed for demanding applications such as artificial intelligence and other high-power workloads, this flagship of the Prime series offers premium performance based on high-quality components.
7. Seasonic Vertex PX-1200 1200W ATX30 VERTEX PX-1200
The Seasonic Vertex PX-1200 power supply from the Vertex series offers true performance in the Platinum efficiency class, with all the modern features one would expect from a Seasonic power supply: full modularity and cable management options. The power supply includes an additional 12VHPWR cable to accommodate current graphics cards and a 135mm Fluid Dynamic Bearing fan for quiet operation. The Seasonic Hybrid Silent Fan Control ensures optimal cooling.
8. 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.
9. Seasonic G12 GM-750
The Seasonic FOCUS Gold SSR-750FM power supply offers reliable performance with an output power of 750 watts and meets various environmental standards, including Energy Star. The semi-modular design of this power supply allows for efficient cable management, minimizing clutter and improving airflow within a system. The power supply operates efficiently with an 80 PLUS Gold certification, boasting a high efficiency of 87% at full load and 90% at 50% load. It ensures stable operation within a temperature range of 0 °C to 50 °C, making it suitable for various environments.
Safety and reliability are key aspects of the Seasonic FOCUS Gold SSR-750FM, which is equipped with multiple protection features, including over-voltage, under-voltage, and short-circuit protection. The product is designed for longevity with a mean time between failures (MTBF) of 100,000 hours. It also features a Smart & Silent Fan Control System for quiet operation and uses a fluid-bearing fan to enhance durability and efficiency. This power supply is the ideal choice for PC and server setups, as it ensures a stable power supply with advanced protection mechanisms.
10. Seasonic Prime PX-500 Fanless
The Prime Fanless PX series utilizes fanless technology, which completely eliminates fan noise and ensures truly quiet operation. The unit is not only 80PLUS Platinum efficient but also currently offers the highest power available on the market for fanless power supplies. The power supply is ideal for situations where the device needs to be quiet. The high-quality components inside and the innovative circuit design provide clean and stable output performance. The fully modular cables allow for better cable management within the computer case.
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