Power For Everything You Need
SilverStone created the essential gold series power supplies to provide enthusiasts with affordable, but highly efficient choices when building PCs.
Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity. Built-in 120mm fan has excellent airflow and low noise, perfect for quiet home or office use.
High efficiency with 80 PLUS Gold certification
24/7 continuous power output with 40℃ operating temperature
Class-leading single +12V rail
Silent running 120mm 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)
Model No.
SST-ET550-G
Max. DC Output
550W
Power density
305W 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
Color
Black（Lead-Free Paint）
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 temperature 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)
Cooling System
Single 120mm silent fan
Form factor
ATX
Noise Level
18dBA minimum
Dimension
150 mm (W) x 86 mm (H) x 140 mm (D)
5.91″ (W) x 3.39″ (H) x 5.51″ (D)
Weight
1.54 Kg
Certification
80 PLUS Gold
Other
GPU Support list
Compatible with ATX12V v2.4
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