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Black ATX 3.1 power supply with fixed cables and 12cm fan

Thermaltake

Thermaltake Smart BX3 750W 80Plus Bronze ATX 3.1 PS-SPD-0750NNFABU-3 power supply

SKU CH-3F6A-E0S89 MPN PS-SPD-0750NNFABU-3

750 W ATX 3.1 power supply with 80 PLUS Bronze efficiency, a 12 cm FDB fan and non-modular cabling for standard builds

  • ColorBlack
  • TypeATX 3.1
  • Maximum Power750 W
  • Fans12cm FDB Fan
  • PFCActive
  • PCI-Express Connector2 x 6+2-Pin

Options ATX 80+ Bronze (750W)

  • 80 PLUS Bronze efficiency reduces running costs at 115V input
  • 750 W output powers demanding components with Active PFC correction
  • 12 cm FDB fan runs quietly while maintaining thermal limits
  • Comprehensive OCP OVP UVP OPP OTP SCP protection safeguards hardware
  • Compact 150 mm depth fits smaller ATX 3.1 cases

Power-supply basics

The Thermaltake Smart BX3 PS-SPD-0750NNFABU-3 is a 750 W ATX 3.1 unit built for mainstream desktop builds. It delivers power through fixed cables and meets 80 PLUS Bronze efficiency at 115 V input.

Check your case and cables

Verify the chassis accepts a 150 mm long supply and that fixed 24-pin, dual 4+4-pin CPU, two 6+2-pin PCIe, four SATA and four peripheral leads reach every component. Confirm the mains inlet matches your local 100-240 V supply.

Build integration

The 12 cm FDB fan handles cooling while active PFC and full OCP, OVP, UVP, OPP, OTP, SCP protection guard the system. Fixed wiring removes modular connectors but keeps cable routing predictable inside the case.

Highlights

  • 80 PLUS Bronze efficiency reduces running costs at 115V input
  • 750 W output powers demanding components with Active PFC correction
  • 12 cm FDB fan runs quietly while maintaining thermal limits
  • Comprehensive OCP OVP UVP OPP OTP SCP protection safeguards hardware
  • Compact 150 mm depth fits smaller ATX 3.1 cases

Specifications

BrandThermaltake
SeriesSmart BX3
ModelPS-SPD-0750NNFABU-3
ColorBlack
TypeATX 3.1
Maximum Power750 W
Fans12cm FDB Fan
PFCActive
PCI-Express Connector2 x 6+2-Pin
Max PSU Length150 mm
ModularNon-Modular
Power Good Signal100-150 msec
Hold-up Time> 17msec at 80% load
Energy-EfficientMeet 80 PLUS® Bronze at 115Vac input.
ProtectionOCP/OVP/UVP/OPP/OTP/SCP
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current12A-5A
MTBF>100,000 Hours
ApprovalsCE/UKCA/LVD/UKCA/FCC/ICES/TUV/CB/cTUVus/BSMI/CCC
Connectors1 x Main Power (24 Pin)
2 x ATX 12V(4+4 Pin)
2 x PCIe(6+2 Pin)
4 x SATA(5 Pin)
4 x Peripheral
Dimensions5.9"(W)x3.4"(H)x5.5"(D)
Shipping weight2.18 kg
Package size279 × 216 × 127 mm

Other versions of this model

1 more in the same range

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

Questions about this item

What cables come attached to the non-modular Smart BX3 750W and what must I add myself?

The unit ships with a fixed 24-pin main connector, two 4+4-pin CPU connectors, two 6+2-pin PCIe connectors, four SATA connectors and four peripheral connectors. No extra cables can be added because the PSU is non-modular.

The Smart BX3 line only lists one 750W model — how do I know this capacity fits my build?

With 750 W maximum output, 80 PLUS Bronze efficiency at 115 V, two 6+2-pin PCIe connectors and a 150 mm depth, it suits mid-range GPUs and standard ATX cases that accept that length.

What does the 80 PLUS Bronze at 115Vac rating mean for daily power draw?

It guarantees at least 80 % efficiency at typical loads when fed from a 115 V mains supply, reducing waste heat and lowering electricity cost compared with uncertified units.

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