Seasonic B12 BC 550W - Power supply, 80 Plus Bronze
Key Specifications
Choose one or multiple features to search for items that have the same specifications.Technical details | |
Sustainability certificates | ENERGY STAR |
Ports & interfaces | |
PCI Express connector | ![]() |
Motherboard power connector | 20+4 pin ATX |
Number of SATA power connectors | 6 |
Peripheral (Molex) power connectors (4-pin) | 3 |
ATX power connector (20+4 pin) | ![]() |
CPU power connector (4+4 pin) | ![]() |
PCI Express power connectors (6+2 pin) | 2 |
Cabling type | Non-Modular |
Motherboard power cable length | 55 cm |
CPU power cable length | 60 cm |
EPS power connector (4+4 pin) | ![]() |
Weight & dimensions | |
Height | 86 mm |
Width | 150 mm |
Depth | 140 mm |
Energy management | |
Input current | 10 A |
Nominal power | 550 W |
Power protection features | Over current, Over power, Over voltage, Short circuit |
Combined power (+3.3V) | 100 W |
Combined power (+12V) | 540 W |
Combined power (+5V) | 100 W |
Combined power (-12V) | 3.6 W |
Combined power (+5Vsb) | 12.5 W |
Max output current (+3.3V) | 15 A |
Max output current (+12V) | 45 A |
Max output current (+5V) | 15 A |
Max output current (-12V) | 0.3 A |
Max output current (+5Vsb) | 2.5 A |
AC input frequency | 50 - 60 Hz |
AC input voltage | 100 - 240 V |
Total power | 550 W |
Operational conditions | |
Operating temperature (T-T) | 0 - 50 °C |
Certificates | |
80 PLUS certification | 80 PLUS Bronze |
Design | |
Product colour | Black |
Number of fans | 1 fan(s) |
On/off switch | ![]() |
Cooling type | Active |
Fan diameter | 12 cm |
Fan location | Top |
Performance | |
Certification | cTUVus, TUV, CB, CCC, BSMI, CE, FCC |
Mean time between failures (MTBF) | 100000 h |
Purpose | PC |
Bearing technology | Sleeve |
Power supply unit (PSU) form factor | ATX |
Logistics data | |
Harmonized System (HS) code | 84733020 |
EAN | 4711173876748 |
Warranty | 1 year |
The Seasonic B12 BC 550W Power Supply is the perfect solution for your PC building needs, providing reliable and efficient power for everything from budget gaming rigs to basic workstations. Featuring an impressive 80 PLUS Bronze certification, this unit ensures high energy efficiency with at least 82%, 85%, and 82% efficiency at 20%, 50%, and 100% loads respectively. Built with an ATX form factor, the B12 BC is designed to fit seamlessly within standard PC cases, delivering a stable 550 watts of power through its robust design and smart components.
Engineered with a focus on durability and performance, the B12 BC boasts built-in protections such as Over Current Protection (OCP), Over Voltage Protection (OVP), and Short Circuit Protection (SCP). The Smart and Silent Fan Control (S2FC) enhances cooling while minimizing noise, making it ideal for both gaming and office environments. With its non-modular cable system, the B12 BC provides all the essential connectors needed for a wide range of components, ensuring a straightforward setup process without compromising on quality.
Key Features- Wattage Output: 550W
- Form Factor: ATX
- Modular Type: Non-modular
- 80 PLUS Certification: Bronze
- Cooling Type: Active cooling with intelligent fan control
- Connectors: 1 x 20+4 pin ATX, 1 x 4+4 pin CPU, 2 x 6+2 pin PCIe, 6 x SATA, 3 x 4-pin Molex
- Voltage Compatibility: 100–240V input, active PFC
- Protection Features: OCP, OVP, SCP, OTP
- Noise Level: 120mm fan for optimal cooling with reduced noise
- Build Quality: High-quality Japanese capacitors for increased longevity
- Warranty Length: 1 year
- Power supply unit
- Power cord
- Mounting screws
- User manual
- Cable ties
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