Best Seasonic products in the Power Supply PC category

On this page you'll find a ranking of the best Seasonic products in this category. To give you a quick overview, we've already ranked the most important information about the products for you.

1. Seasonic Focus GX-1000 V4 1000W ATX3.0 black

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 case and packaging were also redesigned to better reflect the concept of the OneSeasonic initiative. 

Seasonic Focus GX-1000 V4 1000W ATX3.0 black (1000 W)
Power Supply PC
CHF174.–

Seasonic Focus GX-1000 V4 1000W ATX3.0 black

1000 W

2. Seasonic Focus GX-750 V4 750W ATX3.0 black

The newly upgraded FOCUS PX and GX series are the successors to the FOCUS PLUS series, which became an instant top seller in the power supply market after its launch in 2017. In 2019, Seasonic engineers made improvements to the popular series, such as removing the inline capacitors on the supplied cables. Besides the small change in the series naming, the PSU housing and its packaging have also been updated to align with the concept of the OneSeasonic Initiative.

S3FC - Fanless until 30% load
The industry’s first, Seasonic patented, advanced three-phased thermal control achieves an optimal balance between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.

Fluid Dynamic Fan Bearing
High-performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration, thereby lowering overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

When the fan shaft rotates, high-pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces.

As the speed increases, so does dynamic oil pressure, and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the grooves helps to efficiently channel the lubricant and avert leakage.
 

Seasonic Focus GX-750 V4 750W ATX3.0 black (750 W)
Power Supply PC
CHF109.–

Seasonic Focus GX-750 V4 750W ATX3.0 black

750 W

3. 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.
 

4. 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. 

5. Seasonic Focus GX-850 V4 850W ATX3.0 black

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. 

Seasonic Focus GX-850 V4 850W ATX3.0 black (850 W)
Power Supply PC
CHF141.–

Seasonic Focus GX-850 V4 850W ATX3.0 black

850 W

6. Seasonic Power supply 750W FOCUS-SGX-750 Modular (80+Gold)

SGX Power Supply with strong 62A Single Rail
80 PLUS Gold efficiency (up to 90%)
Fully modular cable management
92mm fan with three modes
Four PCIe connectors
for graphics cards
High-quality cables in black

Powerful power supply with innovative 3-phase fan curve
The Seasonic Focus SGX, with its total output power of 750 watts, is suitable for gaming PCs in the mid-range to high-end segment. The power supply operates very efficiently, thanks to the use of high-quality electrical components. This 80 PLUS Gold certified power supply achieves an efficiency of up to 90% at a load of 50%.

Thanks to the ATX adapter, you can also install the power supply in the spacious power supply cages of larger mid-tower cases.

Technical details:
Dimensions: 125 x 63.5 x 100 mm (W x H x D)
Fan size: 92 mm
Efficiency: min. 87/90/87% @20/50/100% load at 115V, 80 PLUS Gold certified
Form factor: SFX / ATX (adapter)
Power: 750 W
+3.3V: 20 A
+5V: 20 A
3.3V+5V: 100 W
+12V: 62 A
-12V: 0.3 A (3.6 W)
+5Vsb: 3 A (15 W)
Connections (fixed):
1x 20+4-pin
2x 4+4-pin (ATX12V)
4x 6+2-pin PCIe
6x SATA
3x 4-pin Molex
Cable length: 101 - 810 mm
Protection: OPP / OVP / UVP / SCP / OCP / OTP
Safety: cTUVus, TUV, CB, CCC, BSMI, EAC, CE.
 

Seasonic Power supply 750W FOCUS-SGX-750 Modular (80+Gold) (750 W)
Power Supply PC
CHF133.–

Seasonic Power supply 750W FOCUS-SGX-750 Modular (80+Gold)

750 W

7. Seasonic Focus SPX-750

The Focus SPX series from Seasonic is versatile and powerful while requiring minimal space. It is a standard SFX power supply with dimensions of 125 mm (L) x 100 mm (W) x 63.5 mm (H). The Focus SPX comes with an SFX-to-ATX adapter bracket, allowing the power supply to be installed not only in SFX form factor cases but also in standard ATX cases, should the user wish to reserve more space for airflow within the PC case. The Seasonic hybrid fan control is always active to optimize cooling as needed. 

8. Seasonic VERTEX GX-1000, 80+ Gold

The Vertex GX-1000 PC power supply - ATX 3.0 is the perfect choice for all PC enthusiasts and gamers who need a reliable power source for their system. With its five technical highlights, it sets new standards in terms of performance and efficiency.

High Performance: The Vertex GX-1000 delivers an impressive power output of 1000 watts, providing sufficient power for even the most demanding systems. Whether for gaming, video editing, or other resource-intensive tasks, this power supply ensures that your PC always has enough energy.

Efficient Cooling: Thanks to a powerful fan and intelligent cooling technology, the Vertex GX-1000 stays cool even under full load. This extends the lifespan of the components and ensures system stability.

ATX 3.0 Standard: The power supply complies with the ATX 3.0 standard, offering high compatibility with the latest PC components. Whether it's the motherboard, graphics card, or hard drive, the Vertex GX-1000 fits perfectly into your system.

Modular Cable Management: With the modular cable management of the Vertex GX-1000, you can customize the cables to suit your needs. This keeps the interior of your PC tidy and improves airflow, leading to better cooling.

High Energy Efficiency: The Vertex GX-1000 meets the requirements of the 80 PLUS Gold certification. This means it offers high energy efficiency of up to 90%. As a result, you not only save on electricity costs but also help protect the environment.

The Vertex GX-1000 PC power supply - ATX 3.0 is the ideal choice for anyone looking for a reliable power source for their system. With its high performance, efficient cooling, ATX 3.0 standard, modular cable management, and high energy efficiency, it sets new benchmarks for PC power supplies. Whether for gaming, video editing, or other resource-intensive tasks, this power supply delivers the power you need.
 

9. 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.
 

Seasonic VERTEX GX-1200, 80+ Gold (1200 W)
Power Supply PC
−9%
CHF192.– was CHF211.–

Seasonic VERTEX GX-1200, 80+ Gold

1200 W

10. 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.