Lian Li SX Platinum 1000W Fully Modular Low-Noise ATX 3.1 & PCIE 5.1 Black PSU

Lian Li SX Platinum 1000W is a fully modular ATX power supply designed for high-performance PC systems. It supports ATX 3.1 and PCIe 5.1 standards for modern hardware. In addition, it uses a reinforced 12V-2×6 connector for compatible graphics cards.

The power supply delivers up to 1000W of DC output. Its combined +12V output reaches 999.6W, while the combined +3.3V and +5V output is rated at 100W. Furthermore, it accepts 100–240Vac input and uses active PFC with a power factor above 0.95 under specified full-load conditions.

The SX Platinum carries an 80 PLUS Platinum efficiency certification. Moreover, Lian Li states that the series can reach up to 94% conversion efficiency at 50% load. It also supports power excursions up to 200% of its rated output.

For cooling, the PSU uses a 120mm Fluid Dynamic Bearing fan with a maximum speed of 2000 RPM. In addition, its smart stop/start function enables fanless operation up to 40% load. This helps reduce fan activity during lower power demands.

The PSU measures 150 × 86 × 140mm. Therefore, its 140mm depth provides a compact ATX format for broader case compatibility. It also uses fully modular cables, braided main cables, and cable combs for selected connections.

The SX Platinum includes multiple protection systems, including OPP, NLP, OVP, SCP, OCP, OTP, SIP, and UVP. It also uses 105°C Japanese capacitors from Rubycon, Nippon Chemi-Con, and Nichicon.

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