Lian Li SP V2 850 Watt SFX Form Factor Power Supply with Native 12V-2x6 Cable - Low Noise - 80+ Gold Efficiency - ATX 3.1 & PCIe 5.0 Compliant - 92mm FDB Fan - 10-Year Warranty - White (SP850G.W)
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AI Verdict
This 850-watt SFX PSU with ATX 3.1, PCIe 5.0, and a native 12V-2x6 cable is for compact builds needing serious GPU power.
This 850-watt SFX power supply is purpose-built for high-performance small form factor PCs. Its ATX 3.1 and PCIe 5.0 compliance with a native 12V-2x6 cable directly addresses the power needs of modern GPUs in compact spaces. The fully modular design and 92mm FDB fan contribute to a clean, quiet build.
If you need even higher efficiency for minimal heat output, look for SFX PSUs with an 80 Plus Platinum or Titanium rating.
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Pros
- Native 12V-2x6 cable with visual cues simplifies connections for 50/40 series graphics cards and is designed to prevent clearance issues.
- ATX 3.1 and PCIe 5.0 compliance supports current and future high-power graphics cards, resisting transient power spikes.
- Fully modular cabling means you only connect the cables your system needs, reducing clutter in small cases.
- The 92mm FDB fan operates silently with a zero RPM mode until 40% load or 60°C ambient temperature.
- Upgraded 5VSB rail from 2.5A to 3A provides more stable standby power for modern peripherals.
- Backed by a 10-year hardware warranty, indicating durability.
Cons
- The 12V-2x6 connector's plastic portion adds approximately 17mm to the GPU's connector, potentially causing clearance issues in extremely tight SFF cases.
- Some older reviews for the original SP850 mentioned longer EPS cables, which could be challenging for cable management in very small SFX builds.
- While 80 Plus Gold certified, some competing SFX PSUs offer 80 Plus Platinum efficiency.
Dimension Scores
The 80 Plus Gold certification delivers over 90% efficiency at 50% load, and 850 watts is ample for most high-end SFF builds.
The 92mm FDB fan with zero RPM mode ensures silent operation until 40% load or 60°C, minimizing noise during lighter tasks.
It uses premium Japanese electrolytic capacitors for stability and reliability, and comes with a 10-year warranty.
Fully modular design with embossed, anti-tangle cables and a native 12V-2x6 connector with visual cues significantly simplifies cable routing and connections.
Best For
- Small form factor PC builds using high-end NVIDIA 40/50 series GPUs.
- Compact gaming rigs where space is limited but power demands are high.
- Users prioritizing a clean build with fully modular cabling and a native 12V-2x6 connector.
Not Recommended For
- Budget builds where a lower wattage or less advanced PSU would suffice.
- Users with extremely constrained SFF cases where the 12V-2x6 cable's 17mm protrusion could be problematic.
Watch Out For
- The 12V-2x6 connector's additional 17mm length can interfere with side panels or other components in ultra-compact SFX cases.
- Some users reported that the EPS cables on the previous version were quite long, which could lead to excess cable bulk in small cases.
Full Specifications
| ASIN | B0FJCR3ZRC |
| Brand | Lian Li |
| Wattage | 850 watts |
| Model Name | SP850G.W 28145202 |
| Form Factor | SFX |
| Item Weight | 3.92 pounds |
| Manufacturer | LIAN LI |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 850 Watts |
| Item model number | SP850G.W |
| Compatible Devices | Desktop Computer |
| Product Dimensions | 4.92 x 2.5 x 3.94 inches |
| Maximum Input Voltage | 120 Volts (AC) |
| Item dimensions L x W x H | 4.92 x 2.5 x 3.94 inches |
What Buyers Say
This PSU is a strong contender for anyone building a compact PC with a power-hungry GPU, largely due to its native 12V-2x6 cable and ATX 3.1 compliance. The compact SFX size and fully modular cables are consistently highlighted as benefits for small cases. The upgraded standby power and 10-year warranty also add to its appeal. However, the physical size of the 12V-2x6 connector itself might be a tight squeeze in the absolute smallest builds.
“Man, this thing is exactly what I needed for my ITX build with the new 40-series card. That 12V-2x6 cable just plugs right in, no adapters, no mess. Only thing is that connector is THICC, barely cleared my side panel!”
Common Praise
- The native 12V-2x6 cable is a game-changer for new GPUs, making connections straightforward and secure.
- Its compact SFX form factor fits perfectly into small cases without compromising on wattage.
- Fully modular cables make building and cable management much cleaner, especially in tight spaces.
- The fan is quiet, often not spinning at all during light use due to the zero RPM mode.
- The 10-year warranty provides long-term peace of mind.
Common Complaints
- The 12V-2x6 connector's bulk can cause clearance issues with side panels or other components in extremely small cases.
- Some found the EPS cables a bit long, requiring extra effort for neat routing in SFX builds.
- While efficient, it's not the absolute highest efficiency rating available in the SFX category.
Ownership Tips
- The two-tone 12V-2x6 cable's visual cue for proper seating is actually super helpful, preventing those 'is it fully in?' moments.
- The fan really does stay off most of the time unless you're really pushing the system, making it practically silent for daily tasks.
- The embossed cables are surprisingly flexible and easier to route than some stiffer modular cables I've used before.
- The upgraded 5VSB rail seems to handle my USB-powered accessories without a hitch, even when the PC is off.
Frequently Asked Questions
Does this PSU come with the new 12V-2x6 cable?
Yes, it includes a native 12V-2x6 power cable with a two-tone design and visual cues for secure connections, supporting PCIe 5.0 graphics cards.
Is this power supply quiet?
It features a 92mm Fluid Dynamic Bearing (FDB) fan with a zero RPM mode, meaning the fan won't spin until the PSU reaches 40% load or the internal temperature hits 60°C, ensuring silent operation under lighter loads.
What are the dimensions of this SFX PSU?
The power supply measures 125 × 100 × 63.5 mm, adhering to the official SFX size specification for compatibility with small form factor cases.
What kind of warranty does it have?
The Lian Li SP V2 850W SFX PSU is backed by a 10-year hardware warranty.
Is it compatible with the latest graphics cards?
Yes, it is ATX 3.1 and PCIe 5.0 compliant, designed to support the power demands of modern high-performance graphics cards, including NVIDIA 40/50 series.
Buying Guide
When you're looking at an SFX power supply like this, you're usually building a compact PC where every millimeter counts. You need to match the wattage to your CPU and GPU, especially if you're running a high-end graphics card. The 'modular' aspect is huge for small cases because it means fewer unused cables cluttering up your build. Also, pay attention to the ATX and PCIe versions for future compatibility with new components.
Wattage (850 watts)
Form Factor (SFX)
ATX 3.1 & PCIe 5.0 Compliant with Native 12V-2x6 Cable
80+ Gold Efficiency
Alternatives
If this wattage is overkill, look for SFX PSUs with lower wattage (e.g., 650W or 750W) but still retaining ATX 3.1 and PCIe 5.0 compliance. If you need even higher efficiency, search for SFX units with 80 Plus Platinum or Titanium ratings.
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