Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black
Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black, photo 2
Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black, photo 3
Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black, photo 4
Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black, photo 5
Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black, photo 6
Lian Li

Lian Li SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black

SKU HC-721856MPN G9P.SX1200P.B000.EU

  • 1200 W
  • 80 Plus Platinum
  • ATX

Highlights

  • 1200W continuous output on a single +12V rail
  • 80 PLUS Platinum certified up to 92% efficiency
  • ATX 3.1 and PCIe 5.1 compliant with native 12V-2x6
  • Fully modular with flexible braided cables included
  • 120mm FDB fan with zero-RPM semi-passive mode
  • 10-year manufacturer warranty

Key specs

Wattage
1,200 W
Efficiency
80 Plus Platinum
Fully modular
Yes
Form factor
ATX
12V-2x6 connector
Yes
Fan Size
120 mm
All specifications
$139.99
  • ≈ 0.001833 BTC
  • ≈ 0.06181 ETH
  • ≈ 140.16 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 10 years
  • 30-day returns Unused items in original packaging
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Overview

A 1200-watt fully modular power supply built for high-end gaming PCs and workstations. It meets ATX 3.1 and PCIe 5.1 standards with a native 12V-2x6 connector.

Design and Cooling

The unit measures 150mm deep, 86mm wide, and 140mm long. A 120mm fluid dynamic bearing fan spins up to 2000 RPM under load and stops completely at low loads for silent operation. Japanese capacitors are used throughout for stability and longevity.

Performance and Standards

Delivers 1200W total with 100W combined on the 3.3V and 5V rails. The single-rail +12V design supports modern GPUs like the RTX 5000 series. ATX 3.1 and PCIe 5.1 compliance ensures compatibility with current and upcoming hardware generations.

Connectivity and Cables

Fully modular connectors include two 4+4-pin CPU, one 12V-2x6, five 6+2-pin PCIe, and eight SATA ports. The 12V-2x6 cable features a two-color lock indicator. Maximum cable lengths reach 700mm for CPU and 850mm for SATA.

Protection Features

Comprehensive safety circuits cover overcurrent, overpower, overtemperature, overvoltage, undervoltage, short-circuit, and no-load conditions. These protections help safeguard connected components during abnormal operation.

SX Series 80 PLUS Platinum Power Supply Fully Modular PCIe 5.1 ATX 3.1 1200W Black specifications

General
BrandLian Li
Manufacturer part no.G9P.SX1200P.B000.EU
EAN4718466021229
Warranty10 years (manufacturer)
Fan Specifications
Fan Size120 mm
Power Supply
PSU FormatATX
ATX StandardATX 3.1
12V Distributionsingle rail
Modular Power SupplyYes
Modular Typefully modular
Protection CircuitsOCP (Overcurrent Protection), OPP (Overload Protection), OTP (Overtemperature Protection), OVP (Overvoltage and Undervoltage Protection), SCP (Short-Circuit Protection), UVP (Undervoltage Protection)
Power Specifications
Total Power Output1200 W
Power Output +3.3V & +5V (combined)100 W
Power Output +12V rails1200 W
Cable Specifications
Max. CPU Power Cable Length700 mm
Max. 24-Pin Motherboard Power Cable Length600 mm
Max. 12V-2x6 Cable Length600 mm
Max. PCIe Power Cable Length550 mm
Max. SATA Power Cable Length850 mm
Cooling
Semi Passive Power SupplyYes
Internal Ports
CPU Power Connectors 12V ATX/EPS2
CPU Power Supply2x 4+4-Pin
12V-2x6 Power Connectors1
6+2 Pin PCIe Power Connectors5
SATA Power Connectors8
Efficiency Class
80PLUS Efficiency80 PLUS Platinum
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Dimensions
Length / Depth140 mm
Width86 mm
Height150 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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