| Product name | SeaSonic S12III Bronze Series SSR-500GB3 | SeaSonic Flex SUB SSP-300SUB |
| Popularity | 80 | 80 |
| Rating | 75 |  |
| Shopineer score | 77 |  78 |
| Price | $51.99 | $54.99 |
| Brand | SeaSonic | SeaSonic |
| Type | Intel ATX 12 V | ATX12V Flex/Mini 1U |
| Maximum Power | 500W | 300W |
| Fans | 120mm Fluid Dynamic Bearing fan | 1 x 40 mm double ball bearing fan |
| PFC | Active | Active |
| Main Connector | 20+4Pin | |
| +12V Rails | Single | 2 |
| PCI-Express Connector | 2 x 6+2-Pin | |
| SATA Power Connector | 4 | |
| SLI | | |
| Haswell Support | | |
| CrossFire | | |
| Modular | Non-Modular | Full Modular |
| Energy-Efficient | 80 PLUS BRONZE Certified | 80 PLUS BRONZE Certified |
| Over Voltage Protection | Yes | Yes |
| Input Voltage | 100 - 240 V | 100 - 240 V |
| Input Frequency Range | 50/60 Hz | 47 - 63 Hz |
| Input Current | 8 - 4 A | Inrush current at cold start : 100 A max. |
| Output | +3.3V@20A, +5V@20A, +12V@40A, -12V@0.3A, +5VSB@2.5A | +3.3V@14A, +5V@17A, +12V1@18A, +12V2@18A, -12V@0.8A, +5VSB@2A |
| MTBF | >100,000 Hours | >100,000 Hours |
| Approvals | Safety and EMC: cTUVus, TUV, Gost-R, UkrTEST, CB , BSMI, Semko, CCC, CE, FCC, C-tickEnvironmental Compliance: Energy Star, RoHS, WEEE, REACH | CB, UL/cUL, TUV, CCC, BSMI, EAC, CE, FCC, RCM |
| Dimensions | 3.39 x 5.51 x 5.91 | |
| Weight | | |
| Connectors | 1 x Main Power (24/20 pins)1 x CPU (8/4 pins)2 x PCIe (8/6 pins)4 x SATA3 x Peripheral1 x Floppy | Main PowerATX 12 VPeripherals: SATA, HDD |
