Description
The Lian Li SP850 represents a significant leap in small form factor (SFX) power delivery, combining an 850W output with an 80 PLUS Gold efficiency rating of up to 93.53%. Housed in a premium brushed aluminum chassis available in black or white, this unit utilizes high-durability Japanese electrolytic capacitors to ensure long-term stability. Its fully modular design and flexible braided cables simplify cable management in tight enclosures, while the Zero RPM mode keeps the 92mm HYB bearing fan stationary until the load exceeds 40%, ensuring silent operation during daily tasks.
This product is for:
- Small Form Factor (SFF) Builders: Ideal for Mini-ITX cases like the Lian Li O11 Dynamic Mini or A4-H2O where space is at a premium.
- High-End Gamers: Specifically designed to support power-hungry GPUs with its dedicated 12VHPWR cable.
- Silent PC Enthusiasts: Users who prioritize a quiet workspace will benefit from the 0dB noise profile under 40% load.
- Aesthetic-Focused Modders: Builders looking for a clean look will appreciate the sleek brushed aluminum exterior and color-matched braided cables.
- Professional Workstation Users: Reliable power delivery with comprehensive protection circuits for stable creative workflows.
Detailed specifications:
- Form Factor: SFX
- Dimensions: 100mm (D) x 125mm (W) x 63.5mm (H)
- Efficiency: 80 PLUS Gold (Up to 93.53%)
- Total Power: 850W (840W on +12V rail)
- Protection Circuits: OCP, OVP, OTP, OPP, SCP, UVP
- Cooling: 92mm HYB Bearing Fan with Zero RPM mode
- Connectors: 1x 24-Pin, 2x 8-Pin CPU, 3x 8-Pin PCIe, 1x 12VHPWR (PCIe 5.0), 8x SATA, 4x Peripheral
- Warranty: 5-Year Limited Warranty
Integrating the SP850 into a build is a seamless experience thanks to its compact 100mm depth, which leaves ample room for cable routing even in the most restricted chassis. The braided cables are notably more flexible than standard ribbon cables, allowing for tighter bends without compromising integrity. During high-load gaming sessions, the HYB bearing fan ramps up smoothly, maintaining a noise level between 17.1 and 40.6 dBA, which remains unobtrusive even in open-air configurations. The inclusion of the 12VHPWR cable eliminates the need for bulky adapters, providing a direct and secure power link to modern graphics cards.
Compared to standard ATX power supplies, the SP850 offers a significantly higher power density, providing the same 850W output in a fraction of the volume. While many SFX units stop at 750W or lack native PCIe 5.0 support, the SP850 is specifically optimized for the current generation of hardware. It competes directly with premium SFX units by offering a more refined aesthetic with its aluminum housing and superior cable flexibility compared to the stiff plastic-sleeved cables found on many competitors.
Q&A:
- Does the Lian Li SP850 support the NVIDIA RTX 4090? Yes, it includes a native 12VHPWR cable capable of delivering the power required for RTX 40-series GPUs.
- Is the fan always running? No, the SP850 features a Zero RPM mode where the fan remains off until the power load reaches approximately 340W (40%).
- What is the benefit of Japanese capacitors? Japanese electrolytic capacitors are rated for higher temperatures and longer lifespans, ensuring the PSU remains stable under heavy loads.
- Can I use this PSU in a standard ATX case? Yes, though it is an SFX unit, it can be installed in ATX cases using an SFX-to-ATX adapter bracket (sold separately).
- What safety protections are included? The unit features a full suite of protections including Over Current (OCP), Over Voltage (OVP), Over Temperature (OTP), Over Power (OPP), Short Circuit (SCP), and Under Voltage (UVP).
