Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| PCI Express connector | ![]() |
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 3 |
| Peripheral (Molex) power connectors (4-pin) | 7 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Semi-Modular |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 150,500 mm |
| CPU power cable length | 600 mm |
| Peripheral (Molex) power cable length | 150,500 mm |
| PCI Express power cable length | 600 mm |
| Weight & dimensions | |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 140 mm |
| Energy management | |
| Peak power | 550 W |
| Input current | 12 A |
| Nominal power | 550 W |
| Hold time | 17 ms |
| Power protection features | Over power, Over voltage, Overheating, Overload, Short circuit, Under voltage |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 105 W |
| Combined power (+12V) | 550 W |
| Combined power (+5V) | 105 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 16 A |
| Max output current (+12V) | 45.85 A |
| Max output current (+5V) | 16 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50/60 Hz |
| AC input voltage | 100 - 240 V |
| Total power | 550 W |
| Operational conditions | |
| Operating relative humidity (H-H) | 20 - 85% |
| Storage temperature (T-T) | -40 - 55 °C |
| Operating temperature (T-T) | 5 - 45 °C |
| Storage relative humidity (H-H) | 10 - 95% |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Bronze |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Safety | CE/UKCA/LVD/UKCA/FCC/ICES/TUV/CB/cTUVus/BSMI/CCC |
| Form factor | ATX |
| Purpose | PC |
| Supported motherboard form factors | ATX |
| ATX version | 3.0 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | ATX |
| EAN | 4713227539524 |
The Thermaltake Smart BM3 is a 550W power supply unit designed with an 80 PLUS Bronze certification for electrical efficiency. It is built to the ATX 3.0 standard, ensuring stable power delivery for modern hardware components that have high transient power demands. This model features a native PCIe Gen 5.0 compatible connector, providing direct power to compatible graphics cards via a 12VHPWR cable. The semi-modular design aids in cable management by allowing users to attach only the necessary peripheral cables, which can improve airflow within the chassis.
For thermal management, the unit is equipped with a 120 mm fan that provides active cooling during operation. Internally, it utilizes Active Power Factor Correction (PFC) to maintain stable output and enhance efficiency. The power supply is housed in a standard ATX enclosure, ensuring compatibility with most PC cases. A full suite of industrial-grade protection circuits is included, such as Over Power, Over Voltage, Short Circuit, and Under Voltage Protection, to safeguard system components from electrical anomalies.
Key Features:- Total power output of 550W
- 80 PLUS Bronze certified
- ATX 3.0 standard compliant
- Semi-modular cabling design
- Includes two 6+2 pin PCIe connectors
- Features three SATA power connectors
- Equipped with one 120 mm cooling fan
- Dimensions are 150 x 86 x 140 mm
Estimated delivery: 29.12
Today: Closed
Estimated delivery: 29.12
Today: Closed
Estimated delivery: 29.12
Today: Closed
Estimated delivery: 29.12
Today: Closed
Estimated delivery: 29.12
Today: Closed
Estimated delivery time: 29.12
Estimated delivery time: 30.12
Estimated delivery time: 29.12
Estimated delivery time: 30.12
Estimated delivery time: 30.12
Estimated delivery time: 29.12
Estimated delivery time: 29.12
Estimated delivery time: 30.12
- manual pdf (English)


