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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

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm FDB Fan
  • Power factor correctionActivePFC, PF > 0.9 underfull load@ 115Vac, 60 Hz
  • Efficiency certification80 Plus Gold / CybeneticsGold / PPLP Gold
  • Built-in protectionOCP/OVP/OTP/OPP/SCP/UVP/NLP/SIP

Model 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.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $142.99
Typical for this category: the median of 10,869 items is $142.99.
Max wattage 1200 W
Higher than about 90% of the 930 comparable items (median 850 W).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameLIAN LI
Product lineRS series
Product colorWhite
Product typeATX (ATX 3.1 Compatible)
Ports & slots
Connection types24/20-Pin motherboardconnector(620 mm) * 1pc
8 PinCPU/ATX 12 V connector(700 mm) * 1pc
4+4 PinCPU/ATX 12 V connector(700 mm) * 1pc
6+2 PinGPU connector(650 mm+100 mm) * 1pc
6+2 PinGPU connector(650 mm) * 3pcs
12 V-2 × 6 600 W connector(650 mm) * 1pc
SATA connector(300+15+15+15 mm) * 1pc
SATA-Y connector(375+150 mm) * 1pc
SATA connector(400+150+150+150 mm) * 1pc
PATA connector(500+150+150+150 mm) * 1pc
USB 9pin-9pin(470 mm)* 1pc
USB 9pin-TypeA(550 mm)* 1pc
Power
Max wattage1200 W
Modular cablingFull Modular
Power factor correctionActivePFC, PF > 0.9 underfull load@ 115Vac, 60 Hz
Efficiency certification80 Plus Gold / CybeneticsGold / PPLP Gold
Built-in protectionOCP/OVP/OTP/OPP/SCP/UVP/NLP/SIP
Supply voltage100–240 V
AC input frequency50/60 Hz
Size & build
Product dimensions12.8 in × 8.19 in × 5.12 in
Product weight6.26 lb (2.84 kg)
Shipping weight3.63 kg
Package size330 × 224 × 140 mm
More details
Fan configuration1 × 135 mm FDB Fan

Other versions of this model

2 more in the same range

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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