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Compact black SFX power supply with 92mm fan and modular cables visible

Lian Li

Lian Li SP750G.B 750W SFX power supply

SKU CH-49PG-2F76J MPN SP750G.B

A compact 750W SFX unit with 80 Plus Gold efficiency, a native 12V-2x6 cable for PCIe 5.0 graphics cards, fully modular cabling and a quiet 92mm FDB fan

  • ColorBlack
  • TypeATX (ATX 3.1 Compatible)
  • Maximum Power750W
  • Fans1 x 92 mm FDB Fan
  • PFCActive PFC, PF > 0.90 under full load @ 115Vac, 60Hz
  • ModularFully Modular

Options SFX 80+ Gold (750W) V2 Black

  • Fully modular cabling keeps builds tidy by using only needed cables
  • 80 Plus Gold certification delivers over 90% efficiency at 50% load
  • ATX 3.1 compliance with native 12V-2x6 connector supports PCIe 5.0 graphics cards
  • 92mm FDB fan provides quiet cooling in compact SFX form factor
  • 10-year hardware protection backs long-term reliability

Compact SFX power for small builds

The Lian Li SP750G.B is a 750W SFX power supply built for compact systems that still demand high output. Its 125mm x 100mm x 63.5mm footprint fits tight cases while leaving room for large graphics cards. Fully modular cabling lets builders connect only what the build requires, reducing clutter in restricted interiors. It targets enthusiasts assembling small-form-factor PCs with modern power-hungry components.

ATX 3.1 limits and the 12V-2x6 connector

The unit meets the ATX 3.1 specification and includes a native 12V-2x6 cable rated for PCIe 5.0 graphics cards. This connector handles transient spikes up to 2x the GPU power excursion for 100 microseconds, a requirement the older 12VHPWR design could not guarantee. Efficiency reaches 90% at 50% load under 115V input, satisfying the 80 Plus Gold threshold. Builders without a 12V-2x6 GPU cannot use this cable directly and would need an adapter not supplied here.

Build quality and daily implications

A 92mm fluid-dynamic-bearing fan provides cooling with a low-noise profile suited to quiet-focused builds. All cables are flat and black, with the 12V-2x6 lead using custom-moulded alloy copper terminals for durable seating. The EPS and PCIe leads measure 600mm and 400mm respectively, long enough for routed runs in typical SFX layouts. The 10-year hardware protection period reflects the manufacturer’s confidence in the platform’s reliability.

Highlights

  • Fully modular cabling keeps builds tidy by using only needed cables
  • 80 Plus Gold certification delivers over 90% efficiency at 50% load
  • ATX 3.1 compliance with native 12V-2x6 connector supports PCIe 5.0 graphics cards
  • 92mm FDB fan provides quiet cooling in compact SFX form factor
  • 10-year hardware protection backs long-term reliability

Specifications

BrandLIAN LI
SeriesSP series
ColorBlack
TypeATX (ATX 3.1 Compatible)
Maximum Power750W
Fans1 x 92 mm FDB Fan
PFCActive PFC, PF > 0.90 under full load @ 115Vac, 60Hz
ModularFully Modular
Energy-Efficient80 Plus Gold
ProtectionOCP / OVP / OTP / OPP / SCP / UVP / NLP / SIP
Input Voltage100-240Vac
Input Frequency Range60-50Hz 10-5A
Connectors20+4pin: 350mm * 1pc
CPU - EPS 8pin: 600mm * 1pc
CPU - EPS 4+4pin: 600mm * 1pc
CPU - EPS 8pin: 600mm * 1pc
PCIe 6+2pin: 400mm * 2pcs
12V-2x6 to PCIe 6+2pin: 400mm (none)
12V-2x6: 420mm * 1pc
SATA+PATA: 300+15+15+15mm * 1pc
SATA+PATA: 120+120+120+120mm * 1pc
Dimensions125mm(W)x63.5mm(H)x100mm(D)
Weight3.92 lbs
Shipping weight1.86 kg
Package size241 × 178 × 102 mm

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Questions about this item

Should I pick the 750 W SFX unit or a higher-wattage model for a compact build?

Choose the 750 W SFX unit if your peak system draw stays below that level; its 125 x 100 x 63.5 mm footprint fits small cases while the native 12V-2x6 cable supports modern GPUs directly.

What does the 80 Plus Gold rating deliver in a working PC?

It guarantees over 90 % efficiency at 50 % load on 115 V input, so less waste heat and lower electricity cost during typical gaming or work sessions.

How does the ATX 3.1 compliance and 12V-2x6 connector affect GPU power limits?

The ATX 3.1 design with a 420 mm 12V-2x6 cable meets the PCIe 5.0 spec, allowing up to 600 W through that single connector for high-end graphics cards.

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