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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 | 5 |
| Peripheral (Molex) power connectors (4-pin) | 4 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 2 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| SATA power cable length | 120,400 mm |
| CPU power cable length | 80 cm |
| PCI Express power cable length | 60 cm |
| Weight & dimensions | |
| Weight | 1.89 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 150 mm |
| Energy management | |
| Peak power | 550 W |
| Input current | 25 A |
| Nominal power | 550 W |
| Efficiency | 85% |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 549.6 W |
| Combined power (+5V) | 120 W |
| Combined power (-12V) | 9.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 25 A |
| Max output current (+12V) | 45.8 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.8 A |
| Max output current (+5Vsb) | 3 A |
| AC input voltage | 100 - 240 V |
| Total power | 550 W |
| Packaging data | |
| Package weight | 2.58 kg |
| Package type | Box |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Bronze |
| Packaging content | |
| Cables included | CPU, PCIe, SATA |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Cooling type | Active |
| Fan diameter | 13.5 cm |
| Performance | |
| Mean time between failures (MTBF) | 200000 h |
| Form factor | ATX |
| Purpose | PC |
| Supported motherboard form factors | ATX |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | ATX |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
| EAN | 4718017724289 |
| Warranty | 1 year |
The ASUS TUF-GAMING-550B is a 550W power supply unit engineered for system stability and component longevity. It is constructed with military-grade certified components and a protective PCB coating to function reliably in various environmental conditions, including changes in temperature and humidity. Its 80 PLUS Bronze certification signifies an efficiency level of up to 85% during typical operation, which helps to reduce wasted heat. The unit's active Power Factor Correction (PFC) further contributes to stable and efficient power delivery for the system.
Thermal management is handled by a 120 mm Axial-tech fan, which uses dual ball bearings for an extended operational lifespan compared to sleeve bearing designs. This PSU incorporates 0dB technology, a feature that stops the fan entirely during low-TDP tasks to enable silent operation. The non-modular cabling configuration provides a fixed set of essential connectors, including two 6+2 pin PCIe and five SATA power connectors. Its standard ATX dimensions of 150 x 150 x 86 mm ensure physical compatibility with most mid-tower and full-tower chassis.
Key Features:- Provides a total power output of 550W
- Certified with an 80 PLUS Bronze efficiency rating
- Built with a standard ATX power supply form factor
- Features a fixed, non-modular cable configuration
- Equipped with two 6+2 pin PCIe power connectors
- Includes five SATA power connectors
- Cooled by a 120 mm dual ball bearing fan
- Utilizes 0dB technology for silent low-load operation
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Today: 10:00 - 17:00
Estimated delivery: No delivery info
Today: 10:00 - 18:00
Estimated delivery: No delivery info
Today: 10:00 - 17:00


