Power Supply SilverStone Extreme 1200R SFX-L SST-EX1200R-PL 80 Plus Platinum 1200W

SilverStone Extreme 1200R 1200W Platinum SFX-L Power Supply

The SilverStone Extreme 1200R packs a massive 1200W into a fully modular SFX-L format. It targets Small Form Factor cases where you want full gaming-PC power without giving up compact dimensions, with compatibility for the latest PCIe 5 standards.

Power & efficiency

The unit supplies 1200W of continuous output and relies on a class-leading single +12V rail rated at 100A, giving steady power even to especially demanding components. Cybenetics Platinum certification indicates high efficiency that trims wasted electricity and heat, and that output holds stable at an operating temperature of up to 50℃ for round-the-clock running.

Cables & connectors

The design is fully modular, and the cables arrive with a new ribbed profile that eases routing inside a crowded enclosure. The unit supports a PCIe 12V-2x6 connector in line with the SFX12V 4.1 and PCIe Gen 5 standards, so it is ready to feed next-generation graphics cards.

Reliability & cooling

A quiet 120 mm fan with an FDB bearing and an advanced semi-passive mode keeps noise low, slowing or stopping under light loads. The SFX-L format lets you fit this powerful supply into small cases while keeping power delivery dependable over time.

• Maker: SilverStone
• Output: 1200W continuous
• Format: SFX-L
• Efficiency rating: Cybenetics Platinum
• +12V rail: single, 100A
• GPU connector: 12V-2x6 to PCIe Gen 5
• Cooling: 120 mm FDB fan with semi-passive mode