Lian Li Announces SX Series Power Supplies With Platinum Efficiency and ATX 3.1 Support

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Stable, Silent, and Ready for Future GPUs!

[Press Release] The Lian Li SX Series enters the market with 850W, 1000W, and 1200W models built for modern high-performance systems. Each unit carries 80 PLUS Platinum certification, offering up to 92% efficiency while meeting Intel’s ATX 3.1 standards.

This combination reduces energy waste, improves thermal behavior, and ensures full support for current and upcoming hardware.

A native PCIe Gen 5.1 12V-2×6 connector provides up to 600W directly to next-generation GPUs without adapters. The higher-watt models include an extra 12V-2×6 to dual 6+2 PCIe cable for broader device support.

Cooling is handled by a quiet 120mm fluid dynamic bearing fan with an optional Zero RPM mode for silent operation during low loads. Inside, 100% Japanese 105°C capacitors and a high-amperage single +12V rail deliver stable, clean power under stress.

Lian Li Announces SX Series
Lian Li SX1200P power supply.

The series uses flexible braided-texture modular cables for cleaner routing, paired with an embossed mesh housing that improves airflow and appearance. Safety is supported by a complete set of protections, including OPP, OVP, SCP, OCP, OTP, UVP, SIP, and NLP. All models include a 10-year warranty, reinforcing long-term reliability.

Available in black starting November 13th, 2025, pricing is set at:

  • SX0850P – $119.99
  • SX1000P – $149.99
  • SX1200P – $159.99
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