VIVA 550 Bronze
80 PLUS Bronze 550W ATX power supply
￭ High efficiency with 80 PLUS Bronze certification
￭ 24/7 continuous power output with 40℃ operating temperature
￭ Class-leading single +12V rail
￭ Silent running 120mm fan with 18 dBA minimum
￭ PCIe 8 pin and PCIe 6 pin connectors support
￭ All black flat cables
￭ Multiple protection circuitry
￭ Active PFC
Designed for 80 PLUS Bronze level of efficiency to reduce wasted heat and save on electricity
Built-in 120 mm fan has excellent airflow and low noise, perfect for quiet home or office use
Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking
Flat cables have much greater flexibility to allow for tighter folding and management of cables
Dual CPU power connector design
Advanced protections for safety and security
Over Power Protection 
Over Voltage Protection 
Short Circuit Protection 
SPECIFICATIONS
| Product No. |
SST-VA550-B
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| Max. DC Output |
550W
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| Power density |
305W per liter
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| Model (safety certification) |
SST-ET550
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| Color |
Black（Lead-Free Paint）
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| Combined +3.3V & +5V |
110W
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| Combined +12V |
540W
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| Input Voltage |
100 ~ 264 Vrms
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| Input Frequency Range |
47Hz ~ 63Hz
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| PFC |
Active PFC（PF>0.9 at full load）
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| Efficiency |
82% ~ 85% (at 20% ~ 100% loading)
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| MTBF |
100,000 hours
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| Operating temperature |
0°C ~ 40°C
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| Protection |
Over power protection
Over voltage protection Short circuit protection |
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| Connectors |
1 x 24 / 20-Pin motherboard connector (500mm)
2 x 4-Pin + 4-Pin ATX 12V connector (650mm / 150mm) 2 x 8 / 6-Pin PCIe connector (500mm / 150mm) 6 x SATA connector ("500mm / 150mm / 150mm" x 2) 3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm) |
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| Cooling System |
Single 120mm silent fan
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| Form factor | |||||||||||||||||||||||||||||||||||||||||||
| Noise Level |
18dBA minimum
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| Dimension |
150 mm (W) x 86 mm (H) x 140 mm (D)
5.91" (W) x 3.39" (H) x 5.51" (D) |
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| Weight |
1.49 Kg
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| Certification |
80 PLUS Bronze
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| Other |
GPU Support list
Compatible with ATX12V v2.4 |
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| ● Specifications presented on this page contains most recent revisions and may differ from those printed on retail boxes or manuals. |
Dimensions and cable pinout diagram
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PICTURES
- DOWNLOADS
- RECOMMENDATIONS
- PRODUCT REVIEWS
- Q&A
| Describe | Ver | Size | Download |
 VIVA 550 Bronze manual |
V1.0 | 707 KB |  |
| VIVA 550 Bronze High resolution photos |
8,910 KB | |
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| VIVA 550 Bronze Product Sheet |
V1.0 | 619 KB | |
| Multilanguage installation manual |
V1.0 | 8485KB | |
| Warranty Information |
View | ||
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2. How to Jump Start your power supply (Paper clip test)
Please refer to the following PDF.
3. How to Jump Start your power supply (spare motherboard test)
Please refer to the following PDF.