Lian Li SX1200P Platinum Compact ATX PSU 1200W ATX 3.1 , SXP Compact ATX Form Factor, 12V-2×6 Cable, ATX 3.1 & PCIE 5.1 Compliant, Japanese 105°C Caps, 120mm FDB Fan | WHITE

178 $

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Expert Features

  • 1200W Platinum Power Beast : The SX1200P delivers a full 1200W maximum DC output with 80 PLUS Platinum and PPLP Platinum certification, built to feed serious high-end gaming rigs without flinching under pressure.【turn119207view0†L169-L178】【turn119207view0†L323-L343】
  • ATX 3.1 + PCIe 5.1 Ready : Fully aligned with ATX 3.1 and PCIe 5.1 standards, this PSU is built for modern next-gen systems and supports power excursions up to 200% of rated output for smoother high-performance operation.【turn119207view0†L88-L90】【turn119207view0†L240-L249】
  • Native 12V-2×6 GPU Support : Equipped with a 12V-2×6 high-current copper-alloy terminal for safer, more stable delivery to modern graphics cards—exactly the kind of connector a monster gaming build expects.【turn119207view0†L122-L127】【turn119207view0†L248-L253】
  • Triple PCIe 6+2 GPU Flexibility : The 1200W model includes three PCIe 6+2 cables, plus two additional 12V-2×6 to dual PCIe 6+2-pin cables, giving wide support for powerful or multi-connector GPU setups, especially useful for high-end AMD cards and upgrade-heavy builds.【turn119207view0†L255-L265】
  • Fully Modular Cable Design : Only connect what your build actually needs. That means cleaner cable management, better airflow, and less spaghetti shame behind the motherboard tray.【turn119207view0†L227-L229】【turn119207view0†L329-L329】
  • Braided Cables With Cable Combs : Main power cables use braided sleeving, while the 24-pin, CPU, and 12V-2×6 GPU cables include cable combs for a cleaner, more premium showcase finish inside glass-panel gaming builds.【turn119207view0†L233-L239】
  • Whisper-Quiet Smart Fan Mode : The PSU supports fanless operation up to 40% load with smart stop/start behavior, so your system stays calmer and quieter during lighter gaming or everyday use.【turn119207view0†L91-L91】【turn119207view0†L188-L190】
  • 120mm FDB Cooling Fan : When active cooling is needed, the 120mm FDB fan spins up to 2000RPM for dependable thermal control without turning your rig into a leaf blower festival.【turn119207view0†L341-L342】
  • 100% Japanese 105°C Capacitors : Lian Li specifies premium Rubycon / Nippon Chemi-Con / Nichicon 105°C capacitors, helping improve voltage stability, reduce ripple, and support long-term reliability under heavy thermal load.【turn119207view0†L92-L92】【turn119207view0†L266-L267】
  • Compact 140mm ATX Body : Despite its 1200W output, the SX1200P sticks to a standard 140mm depth, making it easier to install in a broad range of cases while leaving more room for cable routing.【turn119207view0†L93-L93】【turn119207view0†L271-L277】
  • Open-Mesh Vented Front Panel : The patterned vented front improves airflow while adding extra visual attitude to the PSU instead of leaving it looking like a boring power brick.【turn119207view0†L284-L286】
  • Comprehensive Hardware Protection : Built-in OPP, NLP, OVP, SCP, OCP, OTP, SIP, and UVP protections help defend the system against overload, overcurrent, overvoltage, overheating, and short-circuit conditions.【turn119207view0†L288-L290】【turn119207view0†L339-L340】
  • White Showcase Build Ready : This exact version is the White SX1200P, ideal for white-themed gaming rigs where clean hardware and visible cable aesthetics actually matter.【turn119207view0†L140-L167】【turn119207view0†L326-L330】
  • 1-Year Warranty : Your website version should list this unit with a 1-year warranty only, adjusted per your instruction.

Expert Specs

Specification Details
Brand Lian Li
Product Series SX Platinum
Exact Model SX1200P
Color White
Product Type ATX Power Supply Unit
PSU Form Factor Standard ATX
Dimensions 150 × 86 × 140mm
Output Cable Design Fully Modular
ATX Standard ATX 3.1
PCIe Standard PCIe 5.1
Efficiency Certification 80 PLUS Platinum
Additional Efficiency Certification PPLP Platinum
Maximum DC Output 1200W
Combined +3.3V & +5V Output 100W
Combined +12V Output 1200W
Input Rating 100–240Vac
Input Current / Frequency 7.5–14.8A, 50–60Hz
Power Factor Correction Active PFC, PF > 0.95 under full load @ 115Vac, 60Hz
Fan Type 120mm FDB Fan
Maximum Fan Speed 2000RPM
Fanless Mode Smart stop/start up to 40% load
Average Fanless Operating Time Minimum 100,000 hours @ 25°C / 75% load
Main Capacitors 100% Japanese 105°C capacitors
Capacitor Brands Listed Rubycon / Nippon Chemi-Con / Nichicon
Native Modern GPU Connector 12V-2×6 high-current copper-alloy terminal
Additional GPU Power Support 3 × PCIe 6+2 cables
Extra GPU Adapter Support 2 × 12V-2×6 to dual PCIe 6+2-pin cables
Cable Styling Braided-texture main cables
Cable Management Accessories Cable combs on 24-pin, CPU, and 12V-2×6 GPU cables
Protection Suite OPP, NLP, OVP, SCP, OCP, OTP, SIP, UVP
Front Vent Design Patterned open-mesh front panel
Case Compatibility Advantage Compact 140mm depth for easier installation and routing
Safety / Stability Claim Supports power excursions up to 200% of rated output
Official Colors in Product Family Black / White
This Website Version White only
Website Warranty 1 Year
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