Lian Li SP Platinum 1000W SFX Form Factor Power Supply with 12V-2x6 Connectors - ATX 3.1 & PCIE 5.1 Compliant - Low-Noise - Fully Modular - 105°C Capacitors - 10 Year Warranty - Black (SP1000P.B)
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This 1000W SFX power supply with ATX 3.1 and PCIe 5.1 compliance is for small form factor builds needing high power and a 12V-2x6 connector.
This 1000W SFX power supply is purpose-built for high-performance small form factor systems, offering ATX 3.1 and PCIe 5.1 compliance with a 12V-2x6 connector. Its compact dimensions and included SFX-to-ATX bracket ensure broad compatibility for both mini-ITX and standard ATX cases.
If you don't need 1000W, consider a lower wattage SFX unit to potentially save money and reduce heat output.
Regret Score™
Low RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Delivers 1000 watts in an SFX form factor (125mm x 63.5mm x 100mm) for compact builds.
- Includes a 12V-2x6 (600W) GPU cable and is ATX 3.1 and PCIe 5.1 compliant for current-gen graphics cards.
- Operates silently with a fanless mode when under 40% load, engaging its 92mm FDB fan only when needed.
- Features 100% Japanese 105°C capacitors for stable performance and a 10-year warranty.
- Comes with an SFX-to-ATX bracket for installation in standard ATX cases.
- Includes an extension power cord with an inline on/off switch for convenient power control in tight builds.
Cons
- One user reported the 92mm fan revving loudly at an annoying frequency, making it sound like an 'airport next door'.
- The braided modular DC cables, while flexible, can be a bit stiff, complicating cable management in very tight SFF cases.
- The 12V-2x6 connector's thin sense wires with stiff insulation require careful routing if aesthetics are a priority.
- Provides only five SATA connectors, which might be limiting for storage-intensive builds.
Dimension Scores
It is 80 Plus Platinum certified, achieving up to 92% efficiency at 50% load, and delivers a full 1000W output.
It features a fanless mode below 40% load for silent operation, but one user reported a loud, annoying fan noise under higher loads.
Constructed with 100% Japanese 105°C capacitors and backed by a 10-year warranty, indicating high-quality components and expected longevity.
It is fully modular with super flexible braided DC cables, and includes an internal power switch cable, though some users found the cables a bit stiff for very tight SFF builds.
Best For
- Small Form Factor (SFF) PC builds with high-end GPUs requiring a 12V-2x6 connector.
- Gaming PCs needing 1000W of power in a compact chassis.
- Users who prioritize quiet operation at low system loads.
Not Recommended For
- Budget-conscious builders not needing 1000W or SFX form factor.
- Users with extensive storage needs requiring more than five SATA power connectors.
Watch Out For
- The 92mm fan can produce a high-pitched, annoying noise under load, with one user describing it as an 'airport next door'.
- Cable stiffness, particularly with the braided modular DC cables, can make routing challenging in extremely compact SFF cases.
- The 12V-2x6 connector's sense wires are thin and stiff, which can affect cable aesthetics if not carefully managed.
Full Specifications
| ASIN | B0FN7FJ2CM |
| Brand | Lian Li |
| Wattage | 1000 watts |
| Fan Count | 1 |
| Model Name | SP1000P.B 28360571 |
| Form Factor | SFX |
| Item Weight | 4.91 pounds |
| Manufacturer | LIAN LI |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1000 Watts |
| Item model number | SP1000P.B |
| Compatible Devices | Desktop Computer, Gaming PC |
| Product Dimensions | 4.92 x 2.5 x 3.94 inches |
| Item dimensions L x W x H | 4.92 x 2.5 x 3.94 inches |
What Buyers Say
While the Lian Li SP Platinum 1000W is praised for its compact size and powerful output, a recurring concern is the fan noise under load, with one user likening it to an 'airport next door'. The fully modular, braided cables are generally appreciated for flexibility, but some found them a bit stiff for extremely tight small form factor cases. The inclusion of a 12V-2x6 connector and ATX 3.1 compliance makes it a strong contender for modern high-end SFF builds. Electrical performance, including voltage regulation and ripple suppression, is consistently described as exceptional.
“Man, this thing fits my tiny case like a glove and powers my 4090 no problem, but sometimes the fan just screams like a jet engine, it's kinda annoying.”
Common Praise
- Fits perfectly in compact cases like the Lian Li O11 Mini.
- Powers high-end components easily without issues.
- The fully modular design simplifies cable management.
- Exceptional electrical performance with precise voltage regulation and low ripple.
- The 12V-2x6 cable has a dual-color connector for clear insertion checks.
Common Complaints
- The fan can be loud and produce an annoying frequency under load.
- Braided cables are somewhat stiff, making routing difficult in very small cases.
- Thin, stiff sense wires on the 12V-2x6 connector can be aesthetically challenging.
- Only five SATA connectors, which is minimal for builds with multiple storage drives.
Ownership Tips
- The included extension cord with an on/off switch is super handy for turning off the PSU without digging into a cramped case.
- The fanless mode actually works as advertised, keeping things quiet during light browsing or idle.
- The new textured plastic cables are definitely softer and easier to bend than older sleeved ones.
- The dual-color 12V-2x6 connector is a small but useful detail for making sure it's fully seated.
Frequently Asked Questions
What are the dimensions of this power supply?
The Lian Li SP Platinum 1000W is a standard SFX unit, measuring 125mm (W) x 63.5mm (H) x 100mm (D).
Does it come with a 12V-2x6 cable for modern GPUs?
Yes, it includes an in-house designed 12V-2x6 (600W) GPU cable and is compliant with PCIe 5.1 standards.
Is the fan always running?
No, it features a fanless mode that activates at loads of 40% or less, ensuring silent operation during low-power usage.
Can I use this in a standard ATX case?
Yes, an SFX-to-ATX bracket is included in the box, allowing for seamless installation in standard ATX enclosures.
What kind of capacitors does it use?
The power supply is built with 100% Japanese 105°C-rated capacitors for durability and stable performance.
Buying Guide
When you're looking at a power supply, especially an SFX one, you're balancing raw power with physical size. You need enough wattage for your CPU and GPU, but it also has to physically fit in your case. Pay attention to the ATX and PCIe compliance for modern graphics cards, as older PSUs might not have the right connectors or power delivery. Modular cabling is a huge plus for keeping your build tidy and improving airflow, especially in small cases.
Wattage (1000W)
This is the total power your PSU can deliver. For high-end gaming PCs with powerful GPUs and CPUs, 1000W ensures your components get enough juice, preventing crashes or instability, especially during peak loads.
Form Factor (SFX)
This dictates the physical size of the power supply. SFX units are much smaller than standard ATX PSUs, making them essential for compact Small Form Factor (SFF) cases where every millimeter counts.
ATX 3.1 & PCIe 5.1 Compliant with 12V-2x6 Connector
This means the PSU is designed for the latest generation of graphics cards, which often require a specific 12V-2x6 power connector and adhere to newer power delivery standards. Without this, you might need adapters or risk unstable power to your GPU.
80 Plus Platinum Certified
This certification indicates how efficiently the PSU converts AC power from your wall into DC power for your PC. Platinum means it's very efficient (up to 92%), wasting less energy as heat, which can lead to lower electricity bills and a cooler-running system.
Alternatives
If this 1000W SFX unit is overkill, look for SFX power supplies with lower wattage (e.g., 750W or 850W) that still offer ATX 3.1 and PCIe 5.1 compliance. If you have a larger case, a standard ATX PSU might offer more connector options or a lower price point for similar wattage.
You Might Also Like
Micro ATX PC Case | Mini Tower Computer case | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 280mm GPU | 160mm CPU Cooler Height - White S6
$0-$49This MAQUY S6 is a budget Micro ATX case with a pre-installed 120mm RGB fan, supporting 280mm GPUs and 240mm top radiators for entry-level builds.
Micro ATX Case, Mini PC ITX Desktop Computer Case MATX Case Support ATX PSU/250mm GPU/135mm CPU Cooler/1x 3.5’’HDD or 2X 2.5’’SSD/USB 3.0 Port
$0-$49This is a compact 38.5x19.5x32.5cm Micro ATX case supporting 250mm GPUs and 135mm CPU coolers, designed for budget workstation builds.
Small PC Case, ITX Mini Computer Case with 360 Degree Ventilation, 10.5L Compact Design for ITX Motherboard, SFX Power Supply, 4 x 2.5 Inch SSDs
$50-$99This 10.5L acrylic ITX case supports SFX/SFX-L PSUs, ITX motherboards, and GPUs up to 210mm, designed for compact builds.
Micro ATX PC Case | Mini Tower Computer case Support Vertical GPU Mount | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 320mm GPU | 165mm CPU Cooler Height-Black
$0-$49A budget Micro ATX case with a mesh front, tempered glass, and support for 320mm GPUs and 240mm AIOs, but only one pre-installed 120mm RGB fan.