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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

  • TypeIntel ATX 12 V
  • Maximum Power750 W
  • Fans1 x 120mm Fluid Dynamic Bearing Fan
  • Main Connector20+4Pin
  • +12V RailsSingle
  • PCI-Express Connector4 x 6+2-Pin

Options ATX Gold (750W)

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandSeaSonic
SeriesFOCUS GX
ModelFOCUS GX-750 (SSR-750FX)
TypeIntel ATX 12 V
Maximum Power750 W
Fans1 x 120mm Fluid Dynamic Bearing Fan
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin
SATA Power Connector10
Max PSU Length140 mm
ModularFull Modular
Energy-Efficient80 PLUS GOLD Certified
PSU Noise LevelCybenetics Standard ++
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current10 - 5 A
Output+3.3V@20A, +5V@20A, +12V@62A, [email protected] , +5Vsb@3A
MTBF100,000 hours
ApprovalsEnergy Star, RoHS, WEEE, ErP Lot 6, REACH
Connectors1 x Main Power
2 x 4/8 Pin CPU
4 x PCIE
10 x SATA
3 x Peripheral
Cable Spec20/24Pin MB: One cable (610mm)
8/4+4Pin CPU: Two cables (650mm)
2 x PCI-E 6+2Pin: Two cables (750mm)
4 x SATA: Two cables (810, 860mm)
2 x SATA: One cable (450mm)
3 x Molex: One cable (690mm)
Molex to SATA 3.3 Adapter: One cable (300mm)
Features80 PLUS Gold certified
Compact Size - 140 mm deep
Tight Voltage Regulation
Cable-free Connection Design
S3FC - Fanless until 30 % load
Multi-GPU setup
Gold plated connectors
10 years warranty
Dimensions3.39" x 5.91" x 5.51"
Weight6.80 lbs.
Shipping weight2.77 kg
Package size315 × 191 × 117 mm

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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