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. 

Seasonic Focus GX-1000 (1000 W)
Power Supply PC
−7%
CHF129.– was CHF138.–

Seasonic Focus GX-1000

1000 W

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 Vertex PX-1000

The devices in the Vertex series deliver 1000 watts of true power in the Platinum and Gold efficiency classes, with all the best features you can expect from a Seasonic power supply. 

4. 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. 

5. Seasonic VERTEX GX-1200, 80+ Gold

The 1200W VERTEX-GX-1200 Modular Power Supply (80+Gold) is a powerful and reliable power supply for demanding applications. Here are five technical highlights that distinguish this power supply:

High Performance: With a rated power of 1200 watts, this power supply is capable of providing sufficient power to even the most demanding systems. It is ideal for gaming PCs, workstations, and other high-end applications.

Efficiency: The power supply is certified with 80+Gold, meaning it achieves high efficiency of up to 90%. This reduces power consumption and lowers operating costs.

Modular Design: The power supply features a modular design, allowing only the necessary cables to be connected. This reduces cable clutter in the case and improves airflow.

Fan Control: The 135mm fan of the power supply is equipped with intelligent fan control that automatically adjusts the fan speed according to the temperature. This reduces noise levels and extends the lifespan of the fan.

Protection Features: The power supply includes a variety of protection features, including overcurrent protection, overvoltage protection, undervoltage protection, and short circuit protection. This safeguards the system from damage caused by power fluctuations and enhances safety.

Overall, the 1200W VERTEX-GX-1200 Modular Power Supply (80+Gold) is an excellent choice for anyone in need of a powerful and reliable power supply for their demanding applications.
 

6. Seasonic Focus SGX 2021

The Seasonic Focus SGX 80 PLUS Gold is a real power giant and, with its 650 watts of total output power, also supplies high-end PCs with sufficient power, even when two graphics cards form a CrossFireX or SLI setup. The powerful 12-volt rail delivers a whopping 54 A of power. Despite this impressive data, the Seasonic Focus SGX 80 PLUS Gold is designed to be extremely efficient, which is also due to the use of the highest quality components, such as the capacitors. The 80 PLUS Gold certified power supply unit achieves an efficiency of up to 90 % at a load of 50 %. The fact that all cables can be plugged in individually ensures tidiness - a must, especially with such extensive connectivity. After all, in addition to a 24-pin and a 4+4-pin cable, there are also four 6+2-pin PCIe connectors as well as six SATA and three 4-pin Molex connectors. The cables are very flat and easy to lay. It is almost superfluous to mention that the Seasonic Focus SGX 80 PLUS Gold has all the necessary protection circuits that modern high-end power supplies naturally have to offer. However, should the PSU ever give up the ghost: no problem, because Seasonic offers a full ten-year manufacturer's warranty on this exceptional product. 

7. 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.
 

8. 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.
 

9. Seasonic PRIME TX-1600

The Seasonic PRIME TX 3.0 series builds on the great features of the PRIME TX platform and additionally offers ATX 3.0 and PCIe 5.0 compatibility. The current 1600W and 1300W power supplies are equipped with native 12VHPWR connectors, digital fan control, and Japanese electrolytic capacitors rated for 105 °C, ensuring consistently high performance and long lifespan. All these qualities make these power supplies perfect for supporting the latest high-performance graphics cards and processors on the market. 

10. Seasonic Prime TX-1300 ATX 3.0

With its 1,300 watts of total output power, the ATX power supply Seasonic Prime is suitable for gaming PCs that have only components from the absolute high-end segment installed. This power supply is also the right choice for workstations, since several GPUs have an enormous power requirement at the same time.

The power supply unit is therefore suitable for workstations. The power supply unit is extremely efficient, which also results from the use of high-quality electrical components. The 80 PLUS Titanium certified power supply achieves an efficiency of up to 94% at a load of 50%. Thanks to the ATX form factor, the power supply is ideally suited for most cases. Despite the extreme performance, the 135 mm hybrid fan keeps the Seasonic Prime at cool operating temperatures even after extensive use. The Seasonic Prime also impresses with its extensive connectivity.
 

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