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SeaSonic S12II S12II 380B 380 W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

  • ATX12V v2.3
  • 80 PLUS BRONZE Certified
  • 100 - 240 V 50/60 Hz
  • +3.3V@20A, +5V@20A, +12V1@17A, +12V2@17A, -12V@0.8A, +5VSB@2.5A



Sea Sonic Electronics announces its launch of the S12II "Bronze" Series - the updated version of the award-winning S12II Series - to meet the growing demand for highly efficient and competitively-priced power supplies.

S12II Bronze The S12II Bronze Series achieves the 80 PLUS® Bronze standard of at least 82%, 85% & 82% power usage efficiency at 20%, 50% & 100% operating loads respectively. This, combined with Active Power Factor Correction, enables the S12II Bronze to reduce energy waste, boost power efficiency, and more importantly, reduce the energy costs for the users.

In addition to the efficiency upgrade, the S12II Bronze Series maintains the strong foundations of the S12II series. Important features such as the stable and proven Double Forward Converter circuit design, the industry leading Smart and Silent Fan Control (S2FC) and the use of high-reliability Japanese brand capacitors, are all carried forward to the "Bronze" Series.

The S12II Bronze Series, similar to its predecessors, is available in the standard ATX Form Factor and in wattages that are most common for a PC system. In addition to the all-in-one cabling design, the 520W and 620W models come with additional EPS connectors for IPC and server systems and supports both 6P and 8P PCI-E connectors for the most current and high-end dual graphic cards.

Special Features
S12II Bronze

Product Information
1. AC Input & DC Output Voltages (100 ~ 240V, 50 / 60Hz)
S12II Bronze

2. Wire Configuration
S12II Bronze

3. Dimensions (W x L x H):
6 x 5.5 x 3.3 inches (150 x 140 x 86mm)

4. Total Protection:
Over Voltage / Over Power / Short Circuit Protection Total protection for your power supply, your system and yourself.

5. Operating Environment:
Operating temperature: 32 to 122°F (0 to 50°C).
Relative Humidity: 20% to 80%.
(The rated power will reduce from 100% to 80% from 104 to 122 °F (40 to 50°C))


Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Return Policies

Manufacturer Contact Info