GIGABYTE P550SS
GIGABYTE P550SS
The Gigabyte P550SS computer power supply delivers stable power to PC builds in the standard ATX format. Its total output of 550W is aimed at mid-range systems that demand reliability and efficiency. The 80 PLUS Silver certification confirms a high efficiency of 90%, which limits energy waste and heat production. Full compatibility with the ATX 3.1 standard reliably covers the power demands of modern components, including the ability to handle sudden power spikes. The overall black finish complements builds focused on a uniform and clean aesthetic.
550W
Power
ATX
Format
80 PLUS Silver
Certification
No
Modularity
Key technologies of the Gigabyte P550SS computer power supply
- Power supply output of 550W
- 80 PLUS Silver certification confirms up to 90% efficiency
- ATX 3.1 standard handles power spikes up to twice the total output
- Fan uses a fluid dynamic bearing
- Single strong +12V rail delivers a stable current to powerful components
- Flat cables make cable management easier and improve airflow
Choosing a power supply
When choosing a suitable PC power supply, besides the format, the key parameter is its power output. This indicates the maximum number of watts the power supply can continuously provide to the components in the computer. It is a good idea to use an online calculator to determine the optimal power output based on your chosen components.
High efficiency with 80 PLUS Silver certification
The 80 PLUS Silver certification confirms that the power supply achieves 90% efficiency at 50% load. This means less electrical energy is converted into waste heat. Reduced heat production directly contributes to quieter operation, as it results in a lower operating temperature for the PSU, allowing the fan to run at lower speeds. The lower energy consumption also has a positive effect on running costs.
ATX 3.1 support
Full compliance with the Intel ATX 3.0 specification, compatible with the more modern 3.1 version, prepares the build for the demands of current and future components. The power supply can withstand short-term power spikes of up to twice its rated output. This capability prevents system instability during sudden power draws, which are typical for powerful graphics cards and processors during intensive loads like gaming or rendering.
Quiet and efficient cooling
A 120mm fan equipped with a fluid dynamic bearing (FDB) handles heat dissipation from the internal components. Unlike standard sleeve bearings, it uses oil film technology to dampen vibrations and reduce friction, which leads to significantly quieter operation and extends its operational lifespan. Additionally, the fan speed automatically adjusts to the current load and PSU temperature, optimising the balance between cooling performance and noise level.
Stable power supply
The single strong +12V rail design delivers a stable and consistent current to key components such as the processor and graphics card. This approach eliminates the need to balance the load across multiple rails and is ideal for overclocking. The firmly attached cables have a flat profile, which simplifies cable routing and promotes a clean build aesthetic. They also restrict airflow in the case less, contributing to more efficient cooling of the entire system.
Comprehensive protection
The power supply integrates a set of six key protection mechanisms that shield the connected hardware from damage. Integrated protection circuits continuously monitor key electrical parameters and provide protection against overvoltage, overload, short circuit, undervoltage, overcurrent, and overheating, thereby protecting the entire system. If any non-standard operating conditions are detected, the power supply immediately cuts the power.
Package contents
- Computer power supply
- 1× Power cable
- 1× ATX 24-pin
- 1× CPU 4+4-pin
- 1× PCI-E 6+2-pin
- 2× SATA + Peripheral
80 Plus certification in the European market
80 Plus certification was created to objectively evaluate the efficiency of computer power supplies. This gives users a simple and clear comparison between different models. In the European market (where 230V is used), there are six levels of 80 Plus certification with set requirements for computer power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC PSU load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82 % | 85 % | 82 % |
| 80 PLUS Bronze | 85 % | 88 % | 85 % |
| 80 PLUS Silver | 87 % | 90 % | 87 % |
| 80 PLUS Gold | 90 % | 92 % | 89 % |
| 80 PLUS Platinum | 92 % | 94 % | 90 % |
| 80 PLUS Titanium | 94 % | 96 % | 94 % |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Dimensions
SIL Servis Partner a.s., Těšínská 1970/56, 710 00 Slezská Ostrava, Czech Republic, +420 552 301 141, [email protected]
Gigabyte, founded in 1986, is an irreplaceable player in the field of computer components. They put great emphasis on key technologies and the strictest quality standards. The company produces a wide range of basic computer components such as motherboards and graphics cards, but also have many computer peripherals, laptops, tablets, desktops and even network solutions and servers on offer. Recently they also introduced a line of Gigabyte mobile phones.
Specifications can be changed without notice. Images are for illustrative purposes only.
