Seasonic
Seasonic S12III-550GB 550W 80+ Bronze power supply
Delivers 550 W of 80 PLUS Bronze certified power with a single +12 V rail, two 6+2-pin PCIe connectors, six SATA connectors, a 120 mm sleeve-bearing fan under smart silent control, active PFC.
- TypeIntel ATX 12 V
- Maximum Power550 W
- Fans120mm Sleeve Bearing fan
- PFCActive
- Main Connector20+4Pin
- +12V RailsSingle
Options ATX 80+ Bronze (550W)
- ATX 80+ Bronze (500W)
- ATX 80+ Bronze (550W)
- Delivers 550 W continuous power for stable system operation
- 80 PLUS Bronze certification reaches 85 % efficiency at 50 % load
- Single +12 V rail with 45 A simplifies high-demand GPU builds
- 120 mm fan with S2FC adjusts speed for quiet cooling
- Japanese capacitors rated at 105 °C ensure long-term reliability
Power for mainstream and gaming builds
This Seasonic S12III Bronze Series unit delivers 550 W of continuous power for a mainstream system or gaming rig. It meets the 80 PLUS Bronze standard with 82% efficiency at 20% and 100% load and 85% at 50% load. A single +12 V rail simplifies power distribution to the CPU and graphics card. Japanese capacitors rated at 105 °C support long-term reliability.
Fixed cables and a 140 mm depth
The non-modular design provides every cable needed for a standard PC, including a 20+4-pin main connector, two 6+2-pin PCI-Express connectors and six SATA power connectors. At 140 mm long the unit fits most ATX cases, but verify clearance before ordering. The 120 mm sleeve bearing fan is regulated by Seasonic S2FC fan control to balance noise and cooling.
550 W on a single +12 V rail
The single +12 V rail design delivers the full 550 W to CPU and GPU without multi-rail balancing. Active PFC accepts 110-240 V input at 50/60 Hz for worldwide use. Protection circuits include OPP, OVP, UVP and SCP to safeguard components. MTBF exceeds 100,000 hours.
Põhijooned
- Delivers 550 W continuous power for stable system operation
- 80 PLUS Bronze certification reaches 85 % efficiency at 50 % load
- Single +12 V rail with 45 A simplifies high-demand GPU builds
- 120 mm fan with S2FC adjusts speed for quiet cooling
- Japanese capacitors rated at 105 °C ensure long-term reliability
Tehnilised andmed
| Brand | SeaSonic |
|---|---|
| Series | S12III Bronze Series |
| Model | S12III-550GB (SSR-550GB3) |
| Type | Intel ATX 12 V |
| Maximum Power | 550 W |
| Fans | 120mm Sleeve Bearing fan |
| PFC | Active |
| Main Connector | 20+4Pin |
| +12V Rails | Single |
| PCI-Express Connector | 2 x 6+2-Pin |
| SATA Power Connector | 6 |
| Max PSU Length | 140 mm |
| Modular | Non-Modular |
| Energy-Efficient | 80 PLUS BRONZE Certified |
| Over Voltage Protection | Yes |
| Input Voltage | 110 - 240 V |
| Input Frequency Range | 50/60 Hz |
| Input Current | 8 - 4 A |
| Output | +3.3V@20A, +5V@20A, [email protected] , [email protected] , [email protected] |
| MTBF | >100,000 Hours |
| Approvals | Safety and EMC: cTUVus, TUV, Gost-R, UkrTEST, CB, BSMI, Semko, CCC, CE, FCC, C-tick Environmental Compliance: Energy Star, RoHS, WEEE, REACH |
| Connectors | 1 x Main Power (24/20 pins) 1 x CPU (8/4 pins) 2 x PCIe (8/6 pins) 6 x SATA 3 x Peripheral 1 x Floppy |
| Features | 80 PLUS Bronze Certified High Efficiency Highly Reliable 105 °C Japanese Brand Capacitor Ample + 12 V Outputs Active Power Factor Correction (99 % PF Typical) LLC resonant converter design Smart & Silent Fan Control (S2FC) 120 mm Fluid Dynamic Bearing (FDB) Fans Soft-Mount Rubber Cushions Unique Easy Swap Connector Universal AC Input (Full Range) Ultra Ventilation (Honeycomb Structure) |
| Dimensions | 3.39" x 5.51" x 5.91" |
| Tarnekaal | 2.16 kg |
| Pakendi mõõtmed | 267 × 201 × 99 mm |
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Küsimused selle toote kohta
Will this unit fit in a standard ATX case with limited depth?
The chassis is 140 mm long, which matches the typical ATX power-supply clearance in most mid-tower cases.
Can it power a modern graphics card that needs two PCIe power plugs?
It includes two 6+2-pin PCIe connectors, so a card requiring up to two 8-pin plugs can be connected directly.
What efficiency can I expect at typical gaming loads?
The 80 PLUS Bronze rating guarantees 85 % efficiency at 50 % load and 82 % at both 20 % and 100 % load.
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