| Product name | SILVERSTONE Essential Series SST-ET550-HG | SILVERSTONE Essential Series SST-ET750-HG | CORSAIR CP-9020121-NA |
| Popularity | 80 | 80 | 80 |
| Rating | | | |
| Shopineer score | 78 | 78 | 78 |
| Price | $74.95 |  $88.99 |  $64.99 |
| Brand | SILVERSTONE | SILVERSTONE | CORSAIR |
| Type | ATX12V | ATX12V | ATX12V |
| Maximum Power | 550W | 750W | 550W |
| Fans | Single 140mm silent fan | Single 140mm silent fan | 1 x 120mm thermally controlled rifle bearing fan |
| PFC | Active | Active | Active |
| Main Connector | 20+4Pin | 20+4Pin | 24Pin |
| +12V Rails | Single | Single | Single |
| PCI-Express Connector | 2 x 6+2-Pin | 4 x 6+2-Pin | 2 x 6+2-Pin |
| SATA Power Connector | 9 | 9 | 5 |
| SLI | | | |
| Haswell Support | | | |
| CrossFire | | | |
| Modular | Semi-Modular | Semi-Modular | |
| Energy-Efficient | 80 PLUS GOLD Certified | 80 PLUS GOLD Certified | 80 PLUS BRONZE Certified |
| Over Voltage Protection | Yes | Yes | Yes |
| Input Voltage | 100 - 240 V | 100 - 240 V | 100 - 240 V |
| Input Frequency Range | 47 - 63 Hz | 47 - 63 Hz | 47 - 63 Hz |
| Input Current | 8A | 10A | 10 - 5 A |
| Output | +3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5VSB@2.5A | +3.3V@22A, +5V@22A, +12V@62A, -12V@0.3A, +5VSB@2.5A | +3.3V@25A, +5V@20A, +12V@45.8A, -12V@0.8A, +5CXB@3A |
| MTBF | 100,000 hours | 100,000 hours | |
| Approvals | | | FCC, ICES, CE, UL, cUL, RCM, TUV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC |
| Dimensions | 5.91 x 3.39 x 6.30 | 5.91 x 3.39 x 6.30 | 5.91 x 5.51 x 3.39 |
| Weight | 4.25 lbs. | 4.41 lbs. | 3.81 lbs. |
| Connectors | 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" x 2) 9 x SATA connector ("500mm / 150mm / 150mm" x 3) 3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm) 1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm) | 1 x 24 / 20-Pin motherboard connector (500mm) 1 x 8 / 4-Pin EPS / ATX 12V connector (750mm) 4 x 8 / 6-Pin PCIe connector ("500mm / 150mm" x 2) 9 x SATA connector ("500mm / 150mm / 150mm" x 3) 3 x 4-Pin Peripheral connector (500mm / 150mm / 150mm) 1 x 4-Pin Floppy connector (500mm / 150mm / 150mm / 150mm) | 1 x 24-pin ATX Cable1 x EPS12V/ATX12V Cable (4+4)2 x PCIe Cable (6+2)5 x SATA Cable 4 x PATA Cable |
