Thermaltake Smart BX3 650W
Expert rating7.3 / 10
- Wattage:
- 650 W
- 80 PLUS Rating:
- Bronze
- Modularity:
- Non-Modular
- ATX Standard:
- ATX 3.1
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Thermaltake Last updated: 2026-09-12
Where to buy
- AmazonGo to store
- NeweggGo to store
Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick) Review
Wanting a budget-friendly PSU that still supports the newer 12V-2x6 GPU connector, the Thermaltake Smart BX3 650W brings ATX 3.0 compliance down into the Bronze-efficiency, sub-$80 price range.
This is a good pick if native 12V-2x6 support matters more to you than efficiency tier: it's one of the few Bronze units in this list with a real ATX 3.0 spike-handling connector instead of a bundled adapter. Just don't expect the acoustic polish of a Gold-tier unit.
ATX 3.0 on a Budget
Thermaltake built the Smart BX3 to be one of the more affordable ways to get a native 12V-2x6 cable, even though the platform underneath is a fairly standard Bronze-tier DC-DC design rather than a premium one.
Comparison to Alternatives
Against the Thermaltake Toughpower GF A3 750W already in the catalog, the Smart BX3 650W drops to Bronze efficiency and semi-modular cables to hit a lower price while keeping the same native 12V-2x6 connector philosophy. Against the Corsair RM750e, the BX3 is cheaper and Bronze-rated rather than Gold, aimed at buyers who want ATX 3.0 compliance without RM-series pricing.
Specifications
Identity
| Brand | Thermaltake |
|---|---|
| Model Number | Smart BX3 650W |
| Model Number | PS-SPD-0650NNFABU-3 |
Output and rails
| Single +12V Rail | Yes |
|---|
Standards and compliance
| Hold-Up Time | 17 ms |
|---|
Connector inventory
| EPS 8-pin Connectors | 2 |
|---|---|
| SATA Connectors | 4 |
| Molex Connectors | 4 |
Form factor and fit
| Length | 140 mm |
|---|---|
| Colour | Black |
Cooling
| Fan Bearing | Fluid Dynamic |
|---|
Build quality
| Topology | DC-DC with active PFC |
|---|---|
| MTBF | 100000 hours |
Cables
| Modularity | Non-Modular |
|---|
Monitoring, protection and price
| Protections | OCP, OVP, OPP, OTP, SCP, UVP |
|---|---|
| Price | 74.99 USD |
| Warranty | 5 years |
| Wattage | 650 W |
|---|---|
| 80 PLUS Rating | Bronze |
| ATX Standard | ATX 3.1 |
| Form Factor | ATX |
| 12V-2x6 Connectors | 0 |
| Zero-RPM Mode | Yes |
| Sleeved Cables | No |
| PCIe 8-pin Connectors | 2 |
| Connector Count | 1x 24-pin ATX, 2x EPS 4+4, 2x PCIe 6+2-pin, 4x SATA, 4x Molex (all fixed) |
| Fan Size | 120 mm |
| Fan Model / Bearing | 120mm FDB (fluid dynamic bearing) fan with Smart Zero Fan |
| OEM / Platform | CWT |
| Cable Lengths | 24-pin 500mm, EPS 500mm, PCIe 450mm, SATA 500mm |
| Source URL | https://thermaltakeusa.com/products/smart-bx3-bronze-650w-ps-spd-0650nnfabu-3 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.3 / 10
One of the most affordable routes to a native 12V-2x6 connector, at the cost of Gold-tier efficiency and acoustics.
Best for
- Budget RTX 4060 Ti/4070 builds wanting native ATX 3.0
- Mainstream gaming PCs on a tight budget
- Buyers avoiding PCIe adapter cables
Not for
- Anyone chasing Gold-or-better efficiency
- High-wattage or multi-GPU builds
- Acoustics-focused quiet builds
FAQs
What are the key specifications of the Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)?
The Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick) is a power supply from Thermaltake. Key specs: Wattage 650 W, 80 PLUS Rating Bronze, Modularity Semi-Modular, ATX Standard ATX 3.0, 12V-2x6 Connectors 1.
Will the Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick) work with my current setup?
The Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick) lists Wattage is 650 W. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick) best suited to?
It suits budget rtx 4060 ti/4070 builds wanting native atx 3.0, mainstream gaming pcs on a tight budget, buyers avoiding pcie adapter cables.
What are the drawbacks of the Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)?
It is a poor fit for anyone chasing gold-or-better efficiency, high-wattage or multi-gpu builds, acoustics-focused quiet builds.
Compare and read more
- ASUS TUF Gaming 750W Bronze (750W/80+ Bronze/Semi-Modular/ATX 2.x/Mainstream Gaming Tier) vs Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)
- be quiet! Pure Power 12 550W (550W/80+ Gold/Semi-Modular/ATX 2.x/Mainstream Value Pick) vs Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)
- Antec HCG850 Gold Extreme (850W/80+ Gold/Fully Modular/ATX 3.0/High-End Tier) vs Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)
- ASUS ROG Strix 1000W Gold ATX3.0 (1000W/80+ Gold/ATX/Fully Modular/ATX 3.0) vs Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)
- Antec HCG1000 Gold Extreme (1000W/80+ Gold/ATX 3.0/High-End/Multi-Gpu Tier) vs Thermaltake Smart BX3 650W (650W/80+ Bronze/Semi-Modular/ATX 3.0/Mainstream Value Pick)