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Black rectangular ATX power supply unit with 120 mm fan grille and modular cable sockets

Thermaltake

Thermaltake PS-SPD-0750MNFABU-3 750 W power supply

SKU CH-M5ET-TNBAE MPN PS-SPD-0750MNFABU-3

Delivers 750 W via a semi-modular ATX 3.0 design with a 120 mm FDB fan and a native PCIe 12+4pin connector

  • Max wattage750 W
  • Modular cablingSemi-Modular
  • Fan configuration1 × 120 mm FDB Fan
  • Power factor correctionActive
  • PCIe power connectorsPCIe 6+2pin x 4 PCIe 12+4pin (300 W) x 1
  • PSU length limit150 mm

Model ATX 3.0 80+ Bronze (750W)

  • ATX 3.0 compliance supports modern platform power requirements
  • 80 PLUS Bronze certification delivers 80% typical efficiency at 115 V input
  • PCIe 12+4pin connector rated for 300 W powers latest graphics cards
  • 105°C Japanese electrolytic capacitor enhances long-term reliability
  • 100,000-hour MTBF indicates extended operational lifespan

Product identity

The Thermaltake Smart BM3 delivers 750 W through an ATX 3.0 compatible, semi-modular design. It includes a 120 mm FDB fan, active PFC and a 105°C Japanese main capacitor. The unit carries 80 PLUS Bronze certification at 115 Vac input and a full protection suite.

Who it suits

Builders moving to PCIe 5.0 graphics will appreciate the native 12+4pin connector rated for 300 W alongside four 6+2pin cables. The 150 mm depth fits most mid-tower cases, while semi-modular cabling keeps unused leads out of the airflow path. Systems needing fully modular cables or higher efficiency ratings should consider other models.

Build integration

A single 120 mm fan handles cooling, so case ventilation should allow rear exhaust. The compact 150 mm length frees space behind the motherboard tray for cable routing. DC-to-DC topology and a single high-amperage +12 V rail simplify GPU power distribution without extra adapters.

How it compares

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

Price $67.99
Cheaper than about 80% 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).

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Specifications

Product
Brand nameThermaltake
Model nameSPD-750AH2CLB
Part numberPS-SPD-0750MNFABU-3
Product typeATX 3.0 Compatible
Ports & slots
PCIe power connectorsPCIe 6+2pin x 4
PCIe 12+4pin (300 W) x 1
Power
Max wattage750 W
Modular cablingSemi-Modular
Power factor correctionActive
Power good signal100-150 msec
Power hold-up time> 17msec
Efficiency certificationMeet 80 PLUS® Bronze at 115Vac input
Built-in protectionOCP/OVP/UVP/OPP/OTP/SCP
Size & build
Product dimensions150 mm(W)x86 mm(H)x140 mm(D)
Product weight1.63 KG
Shipping weight2.54 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 configuration1 × 120 mm FDB Fan
Mean time between failures100,000 hrs minimum

Other versions of this model

5 more in the same range

Questions about this item

What case clearance do I need for the 150 mm length?

The unit measures 150 mm deep so your case must provide at least that much clearance from the rear panel to any drive cage or motherboard tray.

Will the single 12+4pin connector feed a PCIe 5.0 graphics card while the four 6+2pin cables run older GPUs?

Yes, the native 12+4pin delivers up to 300 W for a Gen 5 card and the four 6+2pin connectors remain available for additional GPUs or peripherals.

How can I confirm the fan is operating correctly after installation?

The 120 mm FDB fan spins at startup; listen for smooth rotation and verify the PSU passes its 100-150 msec power-good signal and holds voltage for more than 17 msec during a brief power loss.

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