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Compact black ATX power supply with 120mm fan and modular cable sockets

Seasonic

Seasonic FOCUS GX-750 750W 80+ Gold full-modular ATX power supply

SKU CH-KBC6-9NNZM MPN FOCUS GX-750

Full-modular 750 W ATX supply with 80 Plus Gold efficiency, a 120 mm fluid-dynamic-bearing fan and 140 mm depth for broad case compatibility

  • Max wattage750 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm Fluid Dynamic Bearing Fan
  • Main power connector20+4Pin
  • 12V railsSingle
  • PCIe power connectors4 × 6+2-Pin

Model ATX Gold (750W)

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  • 80 PLUS Gold efficiency reduces wasted energy during conversion
  • Full modular cabling cuts clutter and improves case airflow
  • 140 mm depth fits every standard ATX chassis
  • Hybrid fan control with fanless mode keeps noise low at light loads
  • Single +12 V rail delivers 62 A for stable GPU power

Compact 750W ATX power supply for modern builds

The Seasonic FOCUS GX-750 delivers 750 W of continuous power through a single +12V rail rated at 62 A. Its 140 mm depth fits standard ATX cases while leaving room for cable routing behind the motherboard tray. The unit carries 80 PLUS Gold certification and uses premium Japanese capacitors for stable output.

Full-modular design with hybrid fan control

All cables detach completely so you install only the four 6+2-pin PCIe leads, ten SATA connectors and the 20+4-pin main cable your build requires. A 120 mm fluid-dynamic-bearing fan runs under Seasonic S2FC or S3FC profiles; the rear switch lets you enable a fanless mode at low load for quieter operation. Cybenetics Standard ++ rating confirms low acoustic output.

Verify case depth and GPU power needs before

Measure the available length in your chassis to confirm the 140 mm unit clears drive cages or radiator brackets. Check that your graphics card requires no more than four 6+2-pin connectors and that the single 12 V rail can satisfy its peak draw. Ensure the 100-240 V AC input matches your local mains supply.

How it compares

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

Price $84.99
Cheaper than about 73% of the 10,869 comparable items (median $142.99).
Max wattage 750 W
Lower than about 60% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSeaSonic
Product lineFOCUS GX
Model nameFOCUS GX-750 (SSR-750FX)
Product typeIntel ATX 12 V
Ports & slots
PCIe power connectors4 × 6+2-Pin
SATA power connectors10
Output type+3.3 V@20A, +5 V@20A, +12 V@62A, +5Vsb@3A
Connection types1 x Main Power
2 × 4/8 Pin CPU
4 x PCIE
10 x SATA
3 x Peripheral
Power
Max wattage750 W
Modular cablingFull Modular
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current10–5 A
Size & build
Product dimensions3.39 in × 5.91 in × 5.51 in
Product weight6.8 lb (3.08 kg)
Shipping weight2.77 kg
Package size315 × 191 × 117 mm
Compatibility
PSU length limit140 mm
Environment & compliance
PSU noise ratingCybenetics Standard ++
Regulatory approvalsEnergy Star, RoHS, WEEE, ErP Lot 6, REACH
More details
Fan configuration1 × 120 mm Fluid Dynamic Bearing Fan
Mean time between failures100,000 h

Other versions of this model

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Questions about this item

What ATX 12 V standard does the Seasonic FOCUS GX-750 follow and what is the maximum +12 V current it can deliver?

The unit follows the Intel ATX 12 V specification and provides a single +12 V rail rated at 62 A, giving the full 750 W on that rail.

How long is the power supply and will it fit a standard ATX case?

The chassis is 140 mm deep, which Seasonic states fits all ATX systems without clearance issues.

How do you switch between the two fan-control modes and which mode enables the fanless option?

Press the button on the rear of the PSU to toggle between S2FC (no fanless mode) and S3FC (includes fanless mode); S3FC is the one that allows the fan to stop at low load.

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