| Product name | CORSAIR CP-9020121-NA | Thermaltake SMART Series SP-750PCBUS | SILVERSTONE SFX Series SST-ST45SF-V3 |
| Popularity | 80 | 80 | 80 |
| Rating | | | |
| Shopineer score | 78 | 78 | 78 |
| Price | $64.99 | $64.99 | $64.99 |
| Brand | CORSAIR | Thermaltake | SILVERSTONE |
| Type | ATX12V | ATX 12V 2.3 | SFX |
| Maximum Power | 550W | 750W | 450W |
| Fans | 1 x 120mm thermally controlled rifle bearing fan | 1 x 120mm cooling fan | Single 92mm silent fan |
| PFC | Active | Active | Active |
| Main Connector | 24Pin | 24Pin | |
| +12V Rails | Single | Single | Single |
| PCI-Express Connector | 2 x 6+2-Pin | 4 x 6+2-Pin | 1 x 6+2-Pin |
| SATA Power Connector | 5 | 8 | 3 |
| SLI | | | |
| Haswell Support | | | |
| CrossFire | | | |
| Modular | | | |
| Energy-Efficient | 80 PLUS BRONZE Certified | 80 PLUS BRONZE Certified | 80 PLUS BRONZE Certified |
| Over Voltage Protection | Yes | | Yes |
| Input Voltage | 100 - 240 V | 100 - 240 V | 90 - 264 V |
| Input Frequency Range | 47 - 63 Hz | 47 - 63 Hz | 47 - 63 Hz |
| Input Current | 10 - 5 A | 10 A | |
| Output | +3.3V@25A, +5V@20A, +12V@45.8A, -12V@0.8A, +5CXB@3A | +3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3.0A | +3.3V@20A, +5V@20A, +12V@37.5A, +5VSB@3A, -12V@0.3A |
| MTBF | | 100,000 hrs minimum | >100,000 Hours |
| Approvals | FCC, ICES, CE, UL, cUL, RCM, TUV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC | UL, CUL, TUV, CE, FCC and BSMI | |
| Dimensions | 5.91 x 5.51 x 3.39 | 3.39 x 5.91 x 6.30 | 2.50 x 4.92 x 3.94 |
| Weight | 3.81 lbs. |  5.8 lbs. |  2.43 lbs. |
| Connectors | 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 | 1 x 24-Pin1 x CPU 4+4-Pin4 x PCI-e 6+2-Pin8 x SATA4 x 4-Pin Peripheral1 x 4-Pin Floppy | 1 x 24 / 20-Pin motherboard connector1 x 8 / 4-Pin EPS / ATX 12V connector1 x 8/6-Pin PCIE connector1 x 6-Pin PCIE connector3 x SATA connector2 x 4-Pin Peripheral connector 1 x 4-Pin Floppy connector |
