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Dual ball fan bearings that can last up to twice as long as sleeve bearing designs.
- An 80 Plus Bronze Certification is the result of low-ESR electrolytic capacitors and other premium components.
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Etched cables can be bent easily during installation.
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6-year warranty included.
Prime Performance
With 80+ Bronze certification, dual ball fan bearings, etched cables and an 6-year warranty, the ASUS Prime series PSU brings efficient and durable power delivery to reliable performance for the system build.
80 Plus Bronze Certification
Brains and Bronze
The high-quality components used in ASUS Prime power supplies ensure efficient and reliable operation worthy of an 80 PLUS Bronze Certification. The efficiency also leads to low temperatures within the PSU, facilitating an even quieter acoustic profile.
Dual Ball Fan Bearings
2X Longer Lifespan
Dual ball bearings boast an extensive lifespan of up to 80,000 hours, lasting twice as long as sleeve bearings and exceeding even fluid dynamic bearings. This means long-lasting, reliable cooling with minimal noise when you choose the ASUS Prime Bronze series.
135mm Fan Design
The 135mm fan can reduce heat more effectively, making the PSU cooler and less noise.
Etched Cables
Made from a pliable premium material, these etched cables are easily flexible during installation, and they operate at temperatures 50°C lower than the safety limit when routed for cable management. These cables also meet the rigorous standards of the UL1581 flame test and UL758 certification, helping to ensure a smooth PC DIY experience and exceptional safety.
DIY-friendly CPU Power Connector
Engineered with a distinct clip between the 4+4 pin connectors and a unique color scheme, this CPU power cable simplifies cable identification during installation. The integrated clip helps to ensure a secure and effortless connection to the motherboard's CPU power connector, streamlining the build process and instilling confidence in your PC setup.
6-year Warranty
Entrenched performance
We're so confident about the reliability of the ASUS Prime Bronze series PSUs that we back them with a 6-year warranty.
Specifications of ASUS Prime 550B 80+ Bronze ATX 2.0 Non Modular Power Supply ( 550W )
| Model |
PRIME-550B-BLACK |
| Intel Form Factor |
ATX12V |
| PFC Type |
Active PFC |
| Dimensions |
150 x 150 x 86 mm |
| Efficiency |
80Plus Bronze |
| MTBF |
>120,000 hrs @ 25°C |
| Protection Features |
OPP/OVP/UVP/SCP/OCP/OTP |
| Hazardous Materials |
ROHS |
| AC Input Range |
100-240Vac |
| DC Output Voltage |
3.3V +5V +12V -12V +5Vsb |
| Maximum Load |
20A 20A 45.5A 0.3A 2.5 |
| Combined Load |
110W 110W 546W 3.6W 12.5W |
| Total Output |
550W |
| Cable Connectors |
MB 24/20-pin x 1
CPU 4+4-pin x 1
PCI-E 8-pin x 2
SATA x 5
PERIPHERAL x 3 |
| Package Contents |
Power Cord x 1
CPU cable x 1 (800mm)
PCI-E 1-to-2 x 1 (600mm)
SATA 1-to-2 cable x 1 (400+120mm)
SATA 1-to-3 cable x 1 (400+120+120mm)
Peripheral 1-to-3 cable x 1 (400+120+120mm)
User Manual x 1 |
| Weight |
Single PSU : 2.2KG
Product Weight (with packing) : 3.067KG |
| 0dB Technology |
No |
