Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity
Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking
Built-in 120 mm fan has excellent airflow and low noise, perfect for quiet home or office use
Flat cables have much greater flexibility to allow for tighter folding and management of cables
Advanced protections for safety and security
Over current protection
Over power protection
Over voltage protection
Short circuit protection
Over temperature protection
- High efficiency with 80 PLUS Gold certification
- Semi-modular cables facilitate cable management
- 24/7 continuous power output with 40°C operating temperature
- Class-leading single +12V rail
- Silent running 140mm fan with 18 dBA
- PCIe 8pin and PCIe 6pin connectors support
- All-black flat cables design
- Dual EPS 8pin with multiple PCI-E 8 / 6pin connectors support (V1.2)
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Product Specifications
Product No.
SST-ET550-HG
Color
Black（Lead-Free Paint）
Max. DC Output
550W
Power density
267W per liter
Load Range
| Output | +3.3V | +5V | +12V | +5VSB | -12V |
|---|---|---|---|---|---|
| Max.(Amps) | 20A | 20A | 45A | 2.5A | 0.3A |
| Peak (Amps) | / | / | / | 3.0A | / |
| Min.(Amps) | 0A | 0A | 0A | 0A | 0A |
| Range (%) | ±5% | ±5% | ±5% | ±5% | ±10% |
| Line Reg.(%) | ±1% | ±1% | ±1% | ±1% | ±1% |
| Ripple(mVp-p) | 50mV | 50mV | 120mV | 50mV | 120mV |
Combined +3.3V & +5V
110W
Combined +12V
540W
Input Voltage
90 ~ 264 Vrms
Input Frequency Range
47Hz ~ 63Hz
PFC
Active PFC（PF>0.9 at full load）
Efficiency
87% ~ 90% at 20% ~ 100% loading
MTBF
100,000 hours
Operating temperature
0°C ~ 40°C
Protection
Over current protection
Over power protection
Over voltage protection
Short circuit protection
Over power protection
Over voltage protection
Short circuit protection
Connectors
V1.1
1 x 24 / 20-Pin motherboard connector (500mm)
1 x 8 / 4-Pin EPS / ATX 12V connector (750mm)
2 x 8 / 6-Pin PCIe connector (500mm / 150mm)
8 x SATA connector ("500mm / 150mm / 150mm" x 2)
3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)
1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
V1.2
1 x 24 / 20-Pin motherboard connector (500mm)
*1 x 8-Pin EPS and 1 x 4-Pin + 4-Pin ATX 12V connector (750mm / 150mm)
2 x 8 / 6-Pin PCIe connector (500mm / 150mm)
8 x SATA connector ("500mm / 150mm / 150mm / 150mm" x 2)
3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)
1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
1 x 24 / 20-Pin motherboard connector (500mm)
1 x 8 / 4-Pin EPS / ATX 12V connector (750mm)
2 x 8 / 6-Pin PCIe connector (500mm / 150mm)
8 x SATA connector ("500mm / 150mm / 150mm" x 2)
3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)
1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
V1.2
1 x 24 / 20-Pin motherboard connector (500mm)
*1 x 8-Pin EPS and 1 x 4-Pin + 4-Pin ATX 12V connector (750mm / 150mm)
2 x 8 / 6-Pin PCIe connector (500mm / 150mm)
8 x SATA connector ("500mm / 150mm / 150mm / 150mm" x 2)
3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm)
1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm)
Cooling System
Single 140mm silent fan
Noise Level
18dBA minimum
Certification
80 PLUS Gold
Form factor
ATX
Dimension
150 mm (W) x 86 mm (H) x 160 mm (D)
Weight
1.93 Kg
Other
