Gigabyte P550SS 550W 80 PLUS Silver ATX Power Supply GP-P550SS
The Gigabyte P550SS 550W Power Supply (GP-P550SS) delivers efficient and reliable power for gaming PCs and desktop computers. Featuring 80 PLUS Silver certification, Intel ATX 3.0 support, ATX 3.1 compatibility, a 120mm Fluid Dynamic Bearing fan, Active PFC and flat black cables, this non-modular SMPS offers stable performance, advanced electrical protection and a 3-year manufacturer warranty, subject to regional terms.
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Gigabyte P550SS 550W 80 PLUS Silver ATX Power Supply GP-P550SS
Power your desktop computer with the Gigabyte P550SS 550W Power Supply, designed for efficient operation, stable power delivery and reliable cooling. Featuring 80 PLUS Silver efficiency certification, a 120mm Fluid Dynamic Bearing cooling fan and Intel ATX 3.0 support, this SMPS is suitable for gaming desktops, office PCs and custom-built computer systems.
80 PLUS Silver Certified Efficiency
The Gigabyte P550SS features 80 PLUS Silver certification under the 230V EU standard, delivering 90% efficiency at 50% load. Its efficient power conversion helps reduce energy wastage, excess heat generation and cooling requirements.
Intel ATX 3.0 and ATX 3.1 Compatibility
Designed according to the Intel ATX 12V 3.0 standard and compatible with ATX 3.1 power supply requirements, the Gigabyte P550SS provides dependable power for modern PC components. Its design supports temporary power excursions up to twice its rated output under specified conditions.
120mm Fluid Dynamic Bearing Fan
The PSU is equipped with a 120mm Fluid Dynamic Bearing (FDB) fan that provides efficient cooling and reduced operating noise. Intelligent fan speed control automatically adjusts cooling performance according to power consumption and temperature.
Reliable Non-Modular Flat Cable Design
Featuring permanently attached flat black cables, the Gigabyte P550SS helps simplify cable routing and installation. Its flat cable construction supports better organization and airflow inside compatible PC cabinets.
Powerful Single +12V Rail
The single +12V rail provides stable power delivery for compatible processors, graphics cards and other computer components, making it suitable for everyday computing and moderate gaming configurations.
Advanced Electrical Protection
The Gigabyte P550SS includes six essential electrical protection features:
- Over Voltage Protection (OVP)
- Over Power Protection (OPP)
- Short Circuit Protection (SCP)
- Under Voltage Protection (UVP)
- Over Current Protection (OCP)
- Over Temperature Protection (OTP)
Key Features:
- 550W total rated power output
- 80 PLUS Silver certification (230V EU)
- 90% efficiency at 50% load
- Intel ATX 12V 3.0 standard
- Compatible with ATX 3.1
- Non-modular power cable design
- 120mm Fluid Dynamic Bearing cooling fan
- Automatic fan speed adjustment
- Active PFC technology
- Powerful single +12V rail
- Flat black cables for convenient routing
- One 20+4-pin motherboard connector
- One 4+4-pin CPU power connector
- Two PCIe 6+2-pin graphics card connectors
- Five SATA power connectors
- Three peripheral power connectors
- Six electrical protection features
- Compact 140mm PSU length
- MTBF greater than 100,000 hours
- 3-year manufacturer warranty, subject to region
Why Choose Gigabyte P550SS 550W?
The Gigabyte P550SS 550W Power Supply combines Silver-rated efficiency, dependable electrical performance, modern ATX compatibility and efficient cooling. Its compact dimensions, flat cable design and essential protection features make it a practical power solution for desktop upgrades, office computers and compatible gaming PC builds.
 Product Specifications
| Specification | Details |
|---|---|
| Brand | Gigabyte |
| Series | P Series |
| Model | P550SS |
| Part Number | GP-P550SS |
| Product Type | SMPS / Power Supply |
| Rated Power | 550W |
| Efficiency Certification | 80 PLUS Silver (230V EU) |
| Efficiency | 90% at Typical Load |
| Modular Type | Non-Modular |
| ATX Standard | Intel ATX 12V v3.0 |
| ATX 3.1 Compatibility | Yes |
| PFC Type | Active PFC (>0.9 Typical) |
| Input Voltage | 155–240V AC |
| Input Current | 6.3A |
| Input Frequency | 50–60Hz |
| Cooling Fan | 120mm |
| Fan Bearing | Fluid Dynamic Bearing (FDB) |
| Motherboard Connector | 1 × 20+4 Pin |
| CPU Connector | 1 × 4+4 Pin |
| PCIe Connectors | 2 × 6+2 Pin |
| SATA Connectors | 5 |
| Peripheral Connectors | 3 × 4-Pin |
| Power Rail | Single +12V |
| Cable Type | Flat, Non-Modular |
| Cable Colour | Black |
| Protection Features | OVP, OPP, SCP, UVP, OCP, OTP |
| MTBF | Greater Than 100,000 Hours |
| Hold-Up Time | Greater Than 16ms |
| Power Good Signal | 100–150ms |
| Dimensions | 150 × 140 × 86mm |
| Colour | Black |
| Warranty | 3 Years, Region Dependent |
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