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Black rectangular ATX power supply with fixed cables and a 12cm fan grille

Thermaltake

Thermaltake Smart BX3 650W 80Plus Bronze ATX 3.1 Non-Modular PS-SPD-0650NNFABU-3

SKU CH-PGAN-TCFE8 MPN PS-SPD-0650NNFABU-3

ATX 3.1 650 W power supply with 80 PLUS Bronze efficiency, a 12 cm FDB fan and full protection suite in a compact 150 mm non-modular design

  • Max wattage650 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 (650W)

  • 80 PLUS Bronze efficiency reduces running costs
  • 650 W output powers mid-range gaming builds
  • 12 cm FDB fan runs quietly under load
  • Compact 150 mm length fits most cases
  • Full protection suite guards against electrical faults

Smart BX3 650W ATX 3.1 power supply

The Thermaltake Smart BX3 delivers 650 W of continuous power in an ATX 3.1 form factor. It is built for mainstream desktop builds that need reliable output without modular cable management. The non-modular design keeps cost down while supplying every essential connector. Protection circuits include OCP, OVP, UVP, OPP, OTP and SCP.

150 mm length fits compact cases

At 150 mm long the unit leaves room behind the motherboard tray for cable routing in smaller chassis. A single 12 cm fluid-dynamic-bearing fan handles cooling across the load range. Fixed cables include a 24-pin main connector, two 4+4-pin CPU connectors, two 6+2-pin PCIe connectors, four SATA connectors and four peripheral connectors. Active PFC corrects the power factor automatically.

80 PLUS Bronze efficiency under sustained load

The supply meets 80 PLUS Bronze at 115 V input, maintaining efficiency during extended gaming or workstation sessions. Hold-up time exceeds 17 ms at 80 % load, giving the system a brief ride-through during power fluctuations. Power-good signal arrives within 100 to 150 ms. MTBF is rated above 100,000 hours for long-term operation.

How it compares

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

Price $51.99
Cheaper than about 90% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameThermaltake
Product lineSmart BX3
Model namePS-SPD-0650NNFABU-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 wattage650 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 is the hold-up time at 80% load?

Hold-up time exceeds 17 msec at 80% load, giving the system a brief window to ride through short mains interruptions.

How loud is the 12 cm FDB fan under continuous load?

The 12 cm fluid-dynamic-bearing fan runs quietly at low loads and ramps up only when internal temperatures rise during sustained high-wattage operation.

Does the non-modular cable set include the 24-pin ATX and two 4+4-pin CPU connectors my motherboard needs?

Yes, the fixed cables provide one 24-pin main connector, two 4+4-pin ATX12V connectors, two 6+2-pin PCIe connectors, four SATA connectors and four peripheral connectors.

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