Lian Li SX1200P Platinum Compact ATX Form Factor 1200W Power Supply, 12V-2×6 Cable, ATX 3.1 PSU & PCIE 5.1 Ready – 140mm Fan – Fully Modular – 100% Japanese 105°C capacitors? – White (SX1200P.W)
80 PLUS Platinum & PPLP Platinum certified for efficiency and reduced heat.
ATX 3.1 ready with reinforced 12V-2×6 high-current terminals for next-gen GPUs.
Delivers stable 12V power with support for power excursions up to 200% of rated output.
Fanless operation up to 40% load with smart stop/start for whisper-quiet performance.
Equipped with 100% Japanese Rubycon / Nippon Chemi-Con / Nichicon 105°C capacitors.
Compact 140 mm ATX length for wide-case compatibility.
Ample PCIe 6+2 Connectors: Easily power multiple accessories, including the LIAN LI Universal USB and fan hub, ensuring a versatile setup without limitations for any build.
Smart Cooling Technology: Features fanless mode at ?40% load for silent operation, while maintaining optimal temperatures during high loads for enhanced performance and longevity. Fanless mode off for excellent noise control.
Flexible Braided Cables: Super flexible DC cables facilitate effortless cable management, reducing clutter and improving airflow in tight or complex builds.
80 Plus Platinum Certified : Achieves up to 92% efficiency at 50% load, ensuring cooler, quieter, and more energy-efficient operation with stable voltage regulation.
105°C-Rated Capacitors: Built with 100% Japanese 105°C-rated capacitors for exceptional durability and stable performance, even under high thermal stress.
RMA Support: Missing parts or cable color issues? Reach out to us for quick support or replacement.
Product Dimensions: 5.9″”W x 3.4″”H x 5.5″”D (150 x 86 x 140 mm); equipped with a 120 mm FDB fan with maximum fan speed of 2,000 RPM.
Platinum Certified
Experience next-level performance with the SX Platinum Series, featuring 80 PLUS® Platinum and PPLP Platinum certifications and full compliance with ATX 3.1 and PCIe 5.1 standards. It delivers stable +12V power, whisper-quiet fanless cooling up to 40% load, and exceptional durability with premium Japanese capacitors
80 PLUS PLATINUM EFFICIENCY
The SX Platinum Series delivers up to 94% conversion efficiency at 50% load, achieving 80 PLUS Platinum-level performance and reducing AC losses and heat, allowing your system to run cooler, quieter, and more cost-effective over time.
Smart Stop/Start for Quiet Operation
When the PSU load is at or below 40%, the fan enters its smart stop/start mode to keep the system quiet under low loads. This feature can also be enabled or disabled using the switch on the rear of the unit.
Fully Modular
A fully modular design gives you the freedom to install only the cables your setup calls for, keeping your system neat, optimized, and ready to showcase.
Braided Cables for a Finished Look
The SX Platinum Series includes braided cables and cable combs to enhance both appearance and durability, making cable management easier and giving your build a clean, professional finish.
ATX 3.1 and PCIe 5.1 Standards
Supporting power excursions up to 200% of its rated output, it delivers stable power for high-performance systems, ensuring smooth and reliable gameplay.
Stable Dual-Color PCIe 5.1 Connector
Equipped with a 12V-2×6 copper-alloy terminal for safe and efficient power delivery, enhancing system stability and performance.
Ample PCIe 6+2 Power Support
Includes three PCIe 6+2 cables, plus two additional 12V-2×6 to dual PCIe 6+2 Pin cables on the 1000W and 1200W models, providing reliable support for multiple devices.
TRIPLE PCIe 6+2 pin GPU SUPPORT
Provides up to five PCIe 6+2 connectors (four on the 850W model), meeting the power needs of high-end AMD graphics cards. This flexible design makes it an ideal choice for users planning future performance upgrades.
100% Japanese Rubycon 105°C Capacitors
All electrolytic and solid capacitors are sourced from leading Japanese brands, Rubycon, Nippon Chemi-Con, or Nichicon, and are 105°C-rated components. These high-grade capacitors ensure stable voltage regulation, lower ripple, and long-term reliability even under high-temperature operation.
Standard Size for Better Case Compatibility
The SX Platinum Series uses a highly compatible standard ATX form factor with a length of only 140 mm, fitting a wide range of cases and leaving more interior space during installation.
Comprehensive Protection
Equipped with OCP, OVP, OTP, OPP, SCP, UVP, NLP, and SIP protection to guard against overcurrent, overvoltage, overheating, overload, and short-circuit conditions for reliable operation.
SPECIFICATIONS
MODEL SX1200P
DIMENSIONS (W)150 mm X (H)86 mm X (D)140 mm
DC OUTPUT Cable Fully-Modular
COLOR Black/White
ATX12V Version ATX 3.1
EFFICIENCY CERTIFICATION 80 PLUS Platinum
MAX. DC OUTPUT 1200W
Combined +3.3V & +5V Output 100W
COMBINED +12V 1200W
INPUT RATING 100-240Vac
INPUT RATING 7.5-14.8A,50-60Hz
POWER FACTOR CORRECTION (PFC) Active PFC, PF > 0.95 under full load @ 115Vac, 60Hz
PROTECTION OPP, NLP, OVP, SCP, OCP, OTP,SIP,UVP
FAN TYPE 120 mm FDB fan
MAX. FAN SPEED 2000RPM
AVERAGE FANLESS OPERATING TIME Minimum 100,000 hours @ 25°C / 75% load
| Weight | 5 kg |
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