Power Supply Seasonic CORE GX 850W 80 Plus Gold ATX 3.1 PCIe 5.0 Fully Modular

Seasonic CORE GX 850W is an ATX power supply aimed at serious gaming and workstation configurations that want stable power and current standards. With 850W you have enough reserve for a powerful GPU and multi-core CPU without worrying about shortages under load. The 80+ Gold certification and efficiency up to 88% mean lower losses and less excess heat. The support for ATX 3.0/3.1 and PCIe Gen 5.0 via the 12VHPWR connector prepares you for modern and future graphics cards.

What you get

With a power of 850W and active PFC, this power supply is suitable for configurations with high-end GPUs, several SSDs/HDDs, and additional fans without approaching the limit of the power supply. The 12VHPWR (12+4) Pin connector provides direct power for PCIe 5.0 graphics cards, without the need for adapters, and the additional 3 x PCI-Express 6+2-pin connectors offer flexibility for older or additional GPUs. With 6 x SATA and 3 x Molex, you easily cover a rich peripheral setup – SSDs, HDDs, controllers, and fans in more complex cases. The 120mm fan takes care of cooling the unit, and thanks to the 80+ Gold efficiency, the fan does not need to spin excessively fast under normal daily load.

• Power 850W – sufficient for high-end gaming or workstation with a powerful GPU and multi-core processor, plus peripherals.
• 80+ Gold certification and up to 88% efficiency – less energy loss and lower temperature in the case under typical load.
• ATX 3.0/3.1 and PCIe Gen 5.0/5.1 support – readiness for current and future graphics cards according to the latest standards.
• 1 x 12VHPWR (12+4) Pin + 3 x PCI-Express 6+2-pin – full flexibility for powering modern and older GPUs without compromise.
• 6 x SATA and 3 x Molex connectors – convenient connection of multiple SSDs/HDDs, fans, and additional accessories.
• 2 x 4+4-pin ATX/EPS – ability to reliably power motherboards with more serious CPU power requirements.
• 120mm fan – balanced cooling of the power supply during prolonged gaming or rendering without excessive noise.

Who is it suitable for

This power supply is a sensible choice if you are aiming for a stable mid- to high-end gaming build or workstation with a powerful GPU and want ATX 3.0/3.1 and PCIe 5.0 compatibility. It is also suitable if you plan to upgrade to a newer generation graphics card with a 12VHPWR connector. If you are making a very budget or ultra-low-power build, 850W may be excessive for you as a class.

The strongest point here is the combination of 850W power, 80+ Gold efficiency, and full readiness for PCIe 5.0 via 12VHPWR, making Seasonic CORE GX 850W a sustainable choice for long-term gaming or work computer.