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White fully modular ATX power supply with rotatable AC inlet, 135 mm fan and flat cables

Lian Li

Lian Li RS1200G.WH 1200 W power supply

SKU CH-763X-VMFVX MPN RS1200G.WH

A fully modular 1200 W ATX 3.1 power supply with a rotatable AC inlet, dual-sided 24-pin output, 12V-2x6 cable, and magnetic USB 2.0 hub for clean cable routing

  • ColorWhite
  • TypeATX (ATX 3.1 Compatible)
  • Maximum Power1200 W
  • Fans1 x 135 mm FDB Fan
  • PFCActivePFC, PF > 0.90 underfull load@ 115Vac, 60Hz
  • ModularFull Modular

Options ATX 3.1 80+ Gold (1200W w/ Hub) White

  • Rotatable 90° AC inlet simplifies cable routing in tight builds
  • 1200 W output with 80 Plus Gold and Cybenetics Platinum efficiency certifications
  • Fully modular design with included 12V-2×6 600 W cable for PCIe 5.1 graphics cards
  • Magnetic USB 2.0 hub powered via SATA for tidy peripheral connections
  • 135 mm FDB fan with semi-passive mode keeps noise low under light loads

Rotatable AC inlet and dual 24-pin output

The Lian Li RS1200G.WH is a 1200 W fully modular ATX 3.1 power supply finished in white. Its industry-first rotatable AC inlet and dual-sided 24-pin connector allow cleaner routing in both standard and back-connect motherboard layouts. The unit targets builders who need high wattage with flexible cable placement.

Replaces fixed-inlet PSUs in tight

Traditional units force the AC cable and 24-pin harness into a single orientation, which can clash with case cut-outs or rear-mounted motherboard headers. The rotatable inlet and reversible 24-pin output remove that constraint, making the upgrade worthwhile when the chassis or motherboard layout would otherwise require sharp bends or extension cables.

1200 W with 600 W 12V-2x6 cable and four GPU plugs

The 12V-2x6 connector is rated for 600 W and ships with thicker low-resistance terminals, while four 6+2-pin PCIe cables support multi-GPU configurations. A 135 mm FDB fan runs in a fanless mode at low load. The platform caps at 1200 W, so systems demanding sustained draw beyond that will need a higher-capacity unit.

Highlights

  • Rotatable 90° AC inlet simplifies cable routing in tight builds
  • 1200 W output with 80 Plus Gold and Cybenetics Platinum efficiency certifications
  • Fully modular design with included 12V-2×6 600 W cable for PCIe 5.1 graphics cards
  • Magnetic USB 2.0 hub powered via SATA for tidy peripheral connections
  • 135 mm FDB fan with semi-passive mode keeps noise low under light loads

Specifications

BrandLIAN LI
SeriesRS series
ColorWhite
TypeATX (ATX 3.1 Compatible)
Maximum Power1200 W
Fans1 x 135 mm FDB Fan
PFCActivePFC, PF > 0.90 underfull load@ 115Vac, 60Hz
ModularFull Modular
Energy-Efficient80 Plus Gold / CybeneticsGold / PPLP Gold
ProtectionOCP/OVP/OTP/OPP/SCP/UVP/NLP/SIP
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Connectors24/20-Pin motherboardconnector(620mm) * 1pc
8 PinCPU/ATX 12V connector(700mm) * 1pc
4+4 PinCPU/ATX 12V connector(700mm) * 1pc
6+2 PinGPU connector(650mm+100mm) * 1pc
6+2 PinGPU connector(650mm) * 3pcs
12V-2X6 600W connector(650mm) * 1pc
SATA connector(300+15+15+15mm) * 1pc
SATA-Y connector(375+150mm) * 1pc
SATA connector(400+150+150+150mm) * 1pc
PATA connector(500+150+150+150mm) * 1pc
USB 9pin-9pin(470mm)* 1pc
USB 9pin-TypeA(550mm)* 1pc
Dimensions12.80" x 8.19" x 5.12"
Weight6.26 lbs
Shipping weight3.63 kg
Package size330 × 224 × 140 mm

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Questions about this item

Will the 12.80" x 8.19" x 5.12" case fit in a standard ATX chassis with the 90° AC inlet rotated?

The unit follows the ATX 3.1 form factor, so it mounts in any standard ATX bay; the rotatable inlet simply lets the cable exit toward the side panel or the rear without changing the footprint.

Which cables must be plugged in before the first boot, and which connector is most often missed?

Attach the 24-pin motherboard cable (620 mm), the 8-pin and 4+4-pin CPU cables (700 mm each), the 12V-2x6 GPU cable (600 W rated), and any 6+2-pin GPU cables needed; builders frequently forget the second 4+4-pin CPU connector on high-end boards.

What part of the USB 2.0 hub will need attention after a few years of use?

The hub draws power from a SATA connector and uses magnetic mounts; over time the SATA plug can loosen from vibration, so reseat it during routine dust cleaning to keep the hub powered.

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