Lian Li Unveils SX Series PSU: Platinum Efficiency and Next-Gen Compatibility

Lian Li, renowned for its high-quality PC cases and accessories, has introduced the SX Series power supply units (PSUs), designed to meet the demands of modern and future PC builds. Available in 850 W, 1000 W, and 1200 W variants, the SX Series delivers exceptional performance, efficiency, and reliability for enthusiasts and professionals alike.

80 Plus Platinum Efficiency and ATX 3.1 Compliance

The SX Series PSUs are certified with 80 Plus Platinum, achieving up to 92% efficiency under typical loads. This high efficiency minimizes energy waste and heat output, contributing to cooler, more reliable system operation. Full compliance with Intel’s ATX 3.1 specification ensures compatibility with the latest and upcoming hardware standards, making the SX Series a future-proof choice for PC builders.

One of the standout features is the native PCIe Gen 5.1 12V-2x6 connector, capable of delivering up to 600 W directly to next-generation graphics cards. This eliminates the need for adapters and supports the latest GPUs with ease. For users with multiple high-power devices, the 1000 W and 1200 W models include a 12V-2x6 to dual 6+2 PCIe cable, expanding connectivity options for advanced configurations.

Advanced Cooling and Premium Components

Efficient cooling is managed by a 120 mm fluid dynamic bearing (FDB) fan, engineered for quiet operation and longevity. The SX Series features a Zero RPM fanless mode, which can be toggled on or off via a rear switch. This allows users to choose between silent operation at low loads or continuous cooling for demanding tasks.

Internally, the SX Series is built with 100% Japanese 105°C capacitors, known for their durability and stable voltage regulation. A high-amperage single +12V rail ensures consistent power delivery to critical components such as GPUs and CPUs, supporting stable performance even under heavy workloads.

Design, Cable Management, and Safety Features

The SX Series combines performance with aesthetics and practicality. Flexible, braided-texture modular cables simplify cable management and contribute to a clean, organized build. The PSU’s embossed mesh housing not only enhances airflow but also adds a refined visual touch, available in both black and white finishes.

Safety and reliability are prioritized with a comprehensive suite of industrial-grade protections, including Over Power Protection (OPP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), Over Current Protection (OCP), Over Temperature Protection (OTP), Under Voltage Protection (UVP), Surge & Inrush Protection (SIP), and No Load Protection (NLP). These features safeguard both the PSU and connected components in all operating conditions.

Each SX Series PSU is backed by a 10-year warranty, underscoring Lian Li’s commitment to long-term reliability and customer confidence.

Availability and Pricing

The Lian Li SX Series PSUs will be available in black starting November 13th, 2025. The lineup includes:

  • SX0850P (850 W): $119.99
  • SX1000P (1000 W): $149.99
  • SX1200P (1200 W): $159.99

With its blend of efficiency, advanced features, and robust build quality, the Lian Li SX Series PSU stands out as a reliable power solution for high-performance PC systems.