We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact SFX power supply unit with matte black finish and modular cable sockets visible

Seasonic

Seasonic FOCUS SGX-750 2021 750W SFX power supply

SKU CH-VEQ9-XSDPD MPN FOCUS SGX-750 2021

Compact SFX unit delivers 750 W through a fully modular design with 80 Plus Gold efficiency and a 92 mm fluid-dynamic fan

  • TypeSFX12V
  • Maximum Power750 W
  • Fans1 x 92 mm Fluid Dynamic Bearing Fan
  • Main Connector20+4Pin
  • +12V RailsSingle
  • PCI-Express Connector4 x 6+2-Pin

Options SFX Gold (750W)

Struck-through versions exist but are not stocked here.

  • Delivers 750 W from a 100 mm SFX frame
  • 80 PLUS Gold efficiency reduces wasted energy during conversion
  • Full-modular cables let you install only what the build needs
  • 92 mm fluid-dynamic fan enables fanless operation at low load
  • Single +12 V rail rated at 62 A powers demanding GPUs

Compact SFX power for small builds

The Seasonic FOCUS SGX-750 2021 is a 750 W SFX12V unit built for compact systems that still demand high output. Its 100 mm length and full-modular cable set let builders use only the connections they need, keeping tight interiors tidy and airflow clear.

750 W headroom with Gold efficiency

A single +12 V rail delivers 62 A, giving ample headroom for modern GPUs and CPUs while the 80 PLUS Gold rating keeps waste heat low under typical loads. The unit tops out at its rated 750 W, so sustained draws beyond that will trip protection circuits.

Hybrid fan control and broad protection

A 92 mm fluid-dynamic-bearing fan runs in three stages, starting with a fanless mode at low load before moving to silent and cooling modes as temperature rises. Full modular cables include two EPS, four PCIe 6+2-pin, six SATA and three peripheral connectors, while OPP, OVP, UVP, OCP, OTP and SCP safeguard the rest of the build.

Highlights

  • Delivers 750 W from a 100 mm SFX frame
  • 80 PLUS Gold efficiency reduces wasted energy during conversion
  • Full-modular cables let you install only what the build needs
  • 92 mm fluid-dynamic fan enables fanless operation at low load
  • Single +12 V rail rated at 62 A powers demanding GPUs

Specifications

BrandSeaSonic
SeriesFOCUS SGX (2021)
ModelFOCUS SGX-750 (Y7751GXSFS)
TypeSFX12V
Maximum Power750 W
Fans1 x 92 mm Fluid Dynamic Bearing Fan
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin
SATA Power Connector6
Max PSU Length100 mm
ModularFull Modular
Energy-Efficient80 PLUS GOLD Certified
ProtectionOPP, OVP, UVP, OCP, OTP, SCP
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
MTBF>100,000 Hours
ApprovalscTUVus, TUV, CB, CCC, BSMI, EAC, CE
Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Connectors1 x 24 pin (20+4) ATX
2 x 8 pin (4+4) EPS (CPU)
4 x 8 pin (6+2) PCIe
6 x SATA
3 x 4 pin Peripheral
Cable Spec24Pin MB: One cable (350mm)
4+4Pin CPU: Two cables (400mm)
2 x PCI-E 6+2Pin: One cable (500mm)
PCI-E 6+2Pin: Two cables (500mm)
3 x SATA: Two cables (600mm)
3 x Molex: One cable (700mm)
Dimensions2.50" x 4.92" x 3.94"
Weight2.29 lbs.
Shipping weight1.94 kg
Package size178 × 178 × 127 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will this SFX unit fit in a case that only accepts power supplies up to 100 mm long?

The housing is 125 mm long, so it exceeds a 100 mm limit and will not fit in that case.

Can the included cables reach the motherboard and graphics card in a mid-tower build?

The 24-pin cable is 350 mm, each CPU cable is 400 mm, and the PCIe cables are 500 mm, which is sufficient for most mid-tower layouts.

Does the fan stay off under light loads?

Yes, the hybrid control runs in Fanless Mode at low load, then moves to Silent Mode and Cooling Mode as temperature rises.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.