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White compact ATX power supply 150 by 86 by 140 mm with 140 mm fan

Lian Li

Lian Li SX1000P.W 1000W Platinum ATX power supply

SKU CH-2XHD-09DTS MPN SX1000P.W

A 1000 W ATX 3.1 and PCIe 5.1 power supply with 80 PLUS Platinum efficiency, a 140 mm fan offering fanless mode up to 40 % load, and fully modular braided cables

  • TypeATX
  • Maximum Power1000 W
  • PFCActive PFC, PF > 0.95 under full load @ 115Vac, 60Hz
  • PSU Noise Level39.9 dB
  • Input Frequency Range100-240Vac
  • MTBF100,000 hrs minimum 25℃/75% Load

Options 1000W White

  • Platinum efficiency saves power with up to 94% conversion at 50% load
  • Silent operation below 40% load thanks to smart stop/start fan mode
  • ATX 3.1 and PCIe 5.1 ready for modern GPU power demands
  • Compact 150mm depth fits small cases while delivering 1000W output
  • 105°C Japanese capacitors and 100,000-hour MTBF ensure long-term reliability

Platinum ATX 3.1 power supply

The Lian Li SX1000P.W delivers 1000 W of continuous power in a compact ATX form factor. It meets ATX 3.1 and PCIe 5.1 specifications and includes a 12V-2x6 cable for modern graphics cards. The fully modular design lets builders connect only the cables their system requires.

Sustained load behaviour

At 50 % load the unit reaches 94 % conversion efficiency, keeping heat and AC losses low during long sessions. A smart fan stop engages at or below 40 % load for silent running and can be toggled via a rear switch. MTBF is rated at 100 000 hours minimum at 25 °C and 75 % load.

Build and connectors

All capacitors are Japanese 105 °C rated for durability under thermal stress. Super flexible braided cables with combs simplify routing in tight chassis. The 140 mm fan operates at 39.9 dB under load while active PFC maintains a power factor above 0.95 at 115 V 60 Hz.

Points forts

  • Platinum efficiency saves power with up to 94% conversion at 50% load
  • Silent operation below 40% load thanks to smart stop/start fan mode
  • ATX 3.1 and PCIe 5.1 ready for modern GPU power demands
  • Compact 150mm depth fits small cases while delivering 1000W output
  • 105°C Japanese capacitors and 100,000-hour MTBF ensure long-term reliability

Caractéristiques

BrandLIAN LI
TypeATX
Maximum Power1000 W
PFCActive PFC, PF > 0.95 under full load @ 115Vac, 60Hz
PSU Noise Level39.9 dB
Input Frequency Range100-240Vac
MTBF100,000 hrs minimum 25℃/75% Load
Dimensions150mm(W)x86mm(H)x140mm(D)
Poids d’expédition3.18 kg
Dimensions du colis305 × 216 × 127 mm

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Questions sur cet article

How loud is the 140mm fan when the PSU runs at full load all day?

The unit is rated at 39.9 dB under typical operating conditions.

Which cables must I already have to power a modern GPU with this 1000W unit?

A native 12V-2x6 cable is included, so no extra adapter is required for PCIe 5.1 graphics cards.

Will the ATX 3.1 design work reliably with my older motherboard that only supports ATX 2.x?

Yes, the power supply is backward compatible with earlier ATX specifications.

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