Thermaltake
Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & PCIE 5 Ready Semi-Modular Power Supply
Bottom line: The Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & PCIE 5 Ready ($79.99 on Amazon as of 2026-10-21 10:12 UTC): ATX 3.1 and PCIe Gen 5 ready with a native 12V-2x6 connector; main trade-off: 80 Plus Bronze only, so efficiency trails Gold units.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ ATX 3.1 and PCIe Gen 5 ready with a native 12V-2x6 connector
- ✓ Japanese 105C main capacitor rated for sustained heat
- ✓ Smart Zero Fan keeps the 120mm FDB fan idle under 20% load
Cons
- ✗ 80 Plus Bronze only, so efficiency trails Gold units
- ✗ Semi-modular, not full modular, so ATX and CPU cables stay attached
- ✗ 750W leaves little headroom for a 4090 or 5090 build
- ✗ Thermaltake lists no cable count or length in the spec sheet
Manufacturer description
Smart BM3 80 PLUS Bronze certified semi modular PSU (650W/750W/850W) is designed to meet ATX 3.1 standards, it also comes with one PCIe Gen 5 (12V-2x6) connector to support modern graphics cards. With an ample 5-year warranty, the Smart BM3 series is able to satisfy the market, where value-oriented users are looking for a new power supply with all the latest features. Featuring a 120mm FDB fan to deliver excellent airflow. Furthermore, with the Smart Zero Fan function the fan will not spin until the load exceeds 20% of the power supply, minimizing undesired noise. It also built with high…
SpecPicks Verdict
SpecPicks scored Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & PCIE 5 Ready… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Thermaltake's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 80Plus Bronze certified and fully compatible with Intel ATX 3.1 standards to power up next generation hardware
- PCIe Gen. 5 compliant
- High quality Japanese 105°C/221°F main capacitor
- 120mm fluid dynamic bearing fan with Smart Zero Fan function
- Built-in Industrial Grade Protection
Full Specifications
| Brand | Thermaltake |
|---|---|
| Wattage | 650 watts |
| Model Name | Smart BM3 750 |
| Form Factor | ATX |
| Model Number | SPD-750AH2CLB |
| Built-In Media | Item |
| Connector Type | ATX, Molex, PCI Express, SATA |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 750 watts |
| Item Dimensions | 5.9 x 5.5 x 3.4 inches |
| Mfr Part Number | PS-SPD-0750MNFABU-3 |
| Compatible Devices | Personal Computer |
| Connector Quantity | 16 |
| Power Supply Design | Semi-Modular |
| Warranty Description | 5 Year Manufacturer |
| Maximum Input Voltage | 240 volts_of_alternating_current |
| Minimum Input Voltage | 115 volts |
| Item dimensions L x W x H | 5.9 x 5.5 x 3.4 inches |
| System Bus Connector Type | PCIe |
| Full listing title | Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & PCIE 5 Ready Semi-Modular Power Supply, 105°C/221°F Japanese Capacitor, 5 Year Warranty, PS-SPD-0750MNFABU-3 |
Ready to buy?
Thermaltake Smart BM3 750W 80Plus Bronze ATX 3.1 & PCIE 5 Ready Semi-Modular Power Supply, 105°C/221°F Japanese Capacitor, 5 Year Warranty, PS-SPD-0750MNFABU-3 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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