Power Supply LIAN-LI SP850P SFX black SP0850P-B 80 Plus Platinum 850W

Lian-Li SP850P 850W Platinum SFX Black Power Supply

Lian-Li's SP Platinum line is built around a compact SFX form factor that delivers serious output to small, high-performance machines. This 850W unit in a black finish pairs Platinum-grade efficiency with ATX 3.1 and PCIe 5.1 compatibility. Despite its small footprint, it is engineered to support power-hungry components.

Power & efficiency

An 850W rating inside an SFX body lets you assemble a strong system in a small case without sacrificing electrical headroom. The 80 PLUS Platinum and PPLP Platinum ratings deliver high efficiency of up to 92% at 50% load, which translates into cooler, quieter running and lower energy use. Precise voltage regulation keeps the CPU and graphics card stable even during sudden load transients.

Cables & connectors

The unit is ATX 3.1 ready and ships with a reinforced 12V-2x6 cable rated to 600W, intended for the next generation of graphics cards. Its fully modular design uses braided leads, so you connect only what the build needs and keep cable management clean. An SFX-to-ATX adapter is included as well, widening compatibility across a broad range of chassis.

Reliability & cooling

Cooling relies on a smart 92 mm fan on an FDB bearing, tuned for quiet, temperature-controlled operation. Long-term reliability is backed by genuine Japanese Rubycon capacitors rated at 105°C. A full protection suite covering OPP, OVP, SCP, OTP, UVP and UCP guards components against overload, overvoltage, short circuit and excess temperature.

• Output: 850W
• Form factor: SFX (ATX adapter included)
• Efficiency rating: 80 PLUS Platinum and PPLP Platinum (up to 92% at 50% load)
• Compatibility: ATX 3.1 and PCIe 5.1
• GPU connector: reinforced 12V-2x6 cable up to 600W
• Capacitors: Japanese Rubycon rated 105°C
• Protections: OPP, OVP, SCP, OTP, UVP, UCP