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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 | 20+4 pin ATX |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| 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 | Fully-Modular |
| Motherboard power cable length | 61 cm |
| SATA power cable length | 810,860 mm |
| CPU power cable length | 100 cm |
| Peripheral (Molex) power cable length | 450 mm |
| PCI Express power cable length | 67.5 cm |
| Weight & dimensions | |
| Weight | 1.73 kg |
| Height | 86 mm |
| Width | 160 mm |
| Depth | 150 mm |
| Energy management | |
| Nominal power | 550 W |
| Efficiency | 80% |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit |
| Power Factor Correction (PFC) type | Active |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 45 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input voltage | 100 - 240 V |
| Total power | 550 W |
| Packaging data | |
| Package weight | 3.12 kg |
| Package type | Box |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Gold |
| Compliance certificates | RoHS |
| Packaging content | |
| Cables included | AC |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan diameter | 13.5 cm |
| Fan location | Top |
| Performance | |
| Mean time between failures (MTBF) | 120000 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 | 4718017535243 |
| Warranty | 1 year |
The ASUS ROG Strix 550G is a 550-watt power supply unit designed for PC builds that require stable and efficient power. Its 80 PLUS Gold certification signifies high operational efficiency, leading to reduced energy consumption and minimal waste heat generation. The fully-modular cabling system permits the installation of only necessary cables, a design that simplifies cable management and can improve airflow within the system chassis. This unit adheres to the standard ATX form factor, ensuring broad compatibility with most desktop cases.
Thermal performance is handled by a 135mm fan featuring 0 dB technology, which deactivates the fan under low-to-medium loads for silent operation. The internal architecture is built for sustained performance, supported by a mean time between failures rating of 120,000 hours. To protect connected hardware, the PSU includes a comprehensive set of safety features. These safeguards include protections against over-voltage, over-power, overheating, and short circuits to ensure system stability during operation.
Key Features:- Provides 550W of total power output
- Features 80 PLUS Gold efficiency certification
- Utilizes a fully-modular cable system
- Equipped with one 20+4 pin ATX connector
- Includes a 4+4 pin CPU power connector
- Offers two 6+2 pin PCIe and eight SATA power connectors
- Measures 160 mm x 150 mm x 86 mm
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Today: Closed (Easter Sunday)
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Today: Closed
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Today: Closed


