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| Basic Information | ||
| Efficiency | 90% Efficiency | |
| Protection | OVP/OPP/SCP/UVP/OCP/OTP | |
| Maximum Power | 550 Watt | |
| Modular Type | Non Modular | |
| Certification | 80 Plus Silver | |
| Others | ATX 12V V3.0 | |
| Connectors | ||
| Main Power | ATX/MB 20+4 Pin x 1 : 600mm*1 | |
| CPU | CPU/EPS 4+4 Pin x 2 : 650mm+120mm*1 | |
| PCI-E | PCI-e 6+2 Pin x 2 : 600mm*2 | |
| SATA | SATA x 3 + 4 Pin Peripheral x 1 : 500mm+120mm+120mm+120mm*1 SATA x 2 + 4 Pin Peripheral x 2 : 500mm+120mm+120mm+120mm*1 | |
| Physical Specification | ||
| Color | Black | |
| Warrnty Information | ||
| Warranty | 3 Year | |
The Gigabyte P550SS is a 550W non-modular ATX power supply designed to deliver steady, dependable power for mid-range desktop PCs. With ATX 12V V3.0 support and an 80 Plus Silver efficiency rating (up to 90% efficiency), it helps reduce wasted energy compared to lower-efficiency units—making it a practical choice for everyday computing, gaming, streaming, and light workstation use.
Rated for maximum power of 550 watts, this PSU is built to keep system power delivery consistent under typical loads. It’s well-suited for users assembling a balanced PC where reliability matters—such as a gaming rig with a mid-range graphics card, a student PC for long study sessions, or a home office system that runs daily without frequent shutdowns or instability.
The 80 Plus Silver certification indicates up to 90% efficiency, which means less electricity is converted into heat. In real-world terms, this can contribute to cooler operation and improved energy savings over time—especially when your PC is used for hours each day. Compared to lower-tier efficiency PSUs, the P550SS is a smarter option if you want better power management without moving to premium efficiency levels.
Safety is a key strength of the P550SS. It includes multiple protection features: OVP (Over Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), and OTP (Over Temperature Protection). These protections help safeguard connected components from common electrical issues like voltage spikes, overload conditions, and overheating—supporting more stable operation and reducing the risk of hardware damage.
As a non-modular PSU, the P550SS uses fixed cables. This design can simplify installation because you don’t need to decide which cables to attach—everything is ready to use. While non-modular units may require more cable management effort in compact cases, they are often a cost-effective and straightforward choice for builders who prioritize reliability and ease of use over advanced cable customization.
The PSU is described as running quietly even under heavy load and maintaining stable voltage. For users who value a comfortable computing environment—such as studying, streaming, or working from home—stable voltage and quieter operation can make day-to-day use more pleasant, especially during longer sessions.
Choose the Gigabyte P550SS if you’re building or upgrading a mid-range desktop and want a 550W ATX power supply with 80 Plus Silver efficiency and strong protection features. It’s also a good fit for office and home systems where consistent power delivery is important. Before purchasing, confirm your system’s power needs are within the 550W range, and consider that non-modular cables may be less convenient for small chassis builds.
The product comes with a 3 Year warranty, offering additional confidence for users who want dependable long-term support for their power supply.
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