Price Comparison
Prices checked 19h ago - Updated 16 Jun 2026
Description and Specs
An 850W power supply unit featuring 80 PLUS Gold efficiency certification and full modularity with white braided cables. This unit complies with ATX 3.1 and PCIe 5.1 standards, making it suitable for contemporary high-performance systems. The design incorporates a 120 mm Hydro Dynamic Bearing fan paired with Smart and Silent Fan Control technology to maintain efficient cooling with minimal noise output.
The power supply benefits from Seasonic's OptiSink design, which utilises an optimised PCB layout and automated manufacturing to improve thermal dissipation and component reliability. Enhanced internal airflow and heat sinking allow safe installation in any orientation. It comes with a seven-year worldwide manufacturer's warranty, providing long-term coverage for the unit.
The power supply benefits from Seasonic's OptiSink design, which utilises an optimised PCB layout and automated manufacturing to improve thermal dissipation and component reliability. Enhanced internal airflow and heat sinking allow safe installation in any orientation. It comes with a seven-year worldwide manufacturer's warranty, providing long-term coverage for the unit.
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This Product in the Power Supplies Landscape
This product at £131.62 is below the average for Power Supplies. Average: £182.41. Range: £50.06 - £2,679.99.
Frequently Asked Questions
Where is the cheapest price for the Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White?
The cheapest price for the Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White is £131.62 at PC Nova. We compare prices across 1 UK retailer.
What is the all-time low price for the Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White?
The all-time lowest price we have recorded for the Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White is £131.62. It is currently at its all-time low.
What category does the Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White belong to?
The Seasonic CORE GX-850 power supply unit 850 W 20+4 pin ATX ATX White is in our Power Supplies category. Browse all Power Supplies to compare prices.