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
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

  • Max wattage750 W
  • Modular cablingNon-Modular
  • Fan configuration12 cm FDB Fan
  • Power factor correctionActive
  • PCIe power connectors2 × 6+2-Pin
  • PSU length limit150 mm

Model 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.

How it compares

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

Price $60.99
Cheaper than about 85% 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).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameThermaltake
Product lineSmart BX3
Model namePS-SPD-0750NNFABU-3
Product colorBlack
Product typeATX 3.1
Ports & slots
PCIe power connectors2 × 6+2-Pin
Connection types1 x Main Power (24 Pin)
2 x ATX 12 V(4+4 Pin)
2 x PCIe(6+2 Pin)
4 x SATA(5 Pin)
4 x Peripheral
Power
Max wattage750 W
Modular cablingNon-Modular
Power factor correctionActive
Power good signal100-150 msec
Power hold-up time> 17msec at 80% load
Efficiency certificationMeet 80 PLUS® Bronze at 115Vac input.
Built-in protectionOCP/OVP/UVP/OPP/OTP/SCP
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current12A-5A
Size & build
Product dimensions5.9 in(W)x3.4 in(H)x5.5 in(D)
Shipping weight2.18 kg
Package size279 × 216 × 127 mm
Compatibility
PSU length limit150 mm
Environment & compliance
Regulatory approvalsCE/UKCA/LVD/UKCA/FCC/ICES/TUV/CB/cTUVus/BSMI/CCC
More details
Fan configuration12 cm FDB Fan
Mean time between failures>100,000 h

Other versions of this model

1 more in the same range

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.

More in ATX Desktop Power Supplies

Similar items