Lian Li SX1200P
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.

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. | ![]() |
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. | ![]() |

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
DIMENSIONS
(W)150 mm X (H)86 mm X (D)140 mm
DC OUTPUT Cable
Fully-Modular
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, 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
JAR Computers може да предложи ремонт/смяна/монтаж в наш сервиз или при партньор.
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| Изходна мощност: | 1200 W |
|---|---|
| Модулен блок: | Да |
| Форм фактор: | ATX |
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