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Power Supply SilverStone 550W ATX
"SilverStone 550W ATX Power Supply: Reliable performance and high efficiency to meet your system's needs with stability."
SST-ST550-EF
Strider 550 EF
High efficiency with 80 PLUS certification
Robust reliability and protection design
24/7 continuous power output with 40℃ operating temperature
Class-leading single +12V rail
Sleek and flexible black flat cable design
Silent running 120mm fan with 18dBA
Designed for 80 PLUS efficiency to reduce wasted heat and saves on electricity.
Powerful single +12V rail design, ideal for future high-end component upgrades or overclocking.
Built-in 120mm fan has excellent airflow and low noise, perfect for quiet home or office use.
Flat cables have a much greater flexibility allowing tighter folding and management of cables.

| Brand | SilverStone |
| Model | SST-ST550-EF |
| Max. DC Output | 550W |
| Power density | 305W per liter |
| Combined +3.3V & +5V | 100W |
| Input Voltage | 180 ~ 264 Vrms |
| PFC | Active PFC (PF>0.9 at full load) |
| MTBF | 100,000 hours |
| Protection | Over Voltage Protection |
| Cooling System | Silent 120mm fan |
| Certification | 80 PLUS |
| Combined +12V | 550W |
| Input Frequency Range | 47Hz ~ 63Hz |
| Efficiency | 82% ~ 85% (at 20% ~ 100% loading) |
| Operating temperature | 0°C ~ 40°C |
| Connectors | 1 x 24 / 20-Pin motherboard connector |
| Noise Level | 18 dBA minimum |
| Form factor | ATX (PS2) |
| Dimension | 150mm (W) × 86mm (H) × 140mm (D) 5.91" (W) x 3.39" (H) x 5.5" (D) |
| Weight | 1.38 kg |
| Warranty | 1 Year |
SST-ST550-EF
Data sheet
- Brand
- SilverStone
- Model
- SST-ST550-EF
- Temperature Operating
- 0°C ~ 40°C
- Power
- 305W per liter
- Input voltage
- 180 ~ 264 Vrms
- Weight
- 1.38 kg
- Form factor
- ATX (PS2)
- Output Capacity
- 550W
- Dimensions
- 150mm (W) × 86mm (H) × 140mm (D)
- Warranty
- 1 Year
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