| Product name | Antec Earthwatts Gold Pro Series EA550G Pro | Rosewill PHOTON-550 | CORSAIR CP-9020121-NA |
| Popularity | 80 | 80 | 80 |
| Rating | | | |
| Shopineer score | 78 | 78 | 78 |
| Price | $72.00 |  $77.99 |  $64.99 |
| Brand | Antec | Rosewill | CORSAIR |
| Type | ATX12V V2.4 | ATX12V v2.31 & EPS12V v2.92 | ATX12V |
| Maximum Power | 550W | 550W | 550W |
| Fans | 120mm silence fan | 1 x Silent 135mm Auto Speed Control fan | 1 x 120mm thermally controlled rifle bearing fan |
| PFC | Active | Active | Active |
| Main Connector | 24Pin | 20+4Pin | 24Pin |
| +12V Rails | Single | Single | Single |
| PCI-Express Connector | 2 x 6+2-Pin | 2 x 6+2-Pin | 2 x 6+2-Pin |
| SATA Power Connector | 5 | | 5 |
| SLI | | Yes | |
| Haswell Support | | | |
| CrossFire | | Yes | |
| Modular | Hybrid Modular | Yes | |
| Energy-Efficient | 80 PLUS GOLD Certified | 80 PLUS GOLD Certified | 80 PLUS BRONZE Certified |
| Over Voltage Protection | Yes | +3.3V, +5V, +12V | Yes |
| Input Voltage | 100 - 240 V | 100 - 240 V | 100 - 240 V |
| Input Frequency Range | 50/60 Hz | 50/60 Hz | 47 - 63 Hz |
| Input Current | 8A - 4A | 8 A | 10 - 5 A |
| Output | +3.3V@20A, +5V@20A, +12V@42A, -12V@0.5A, +5VSB@3A | +3.3V@20A, +5V@20A, +12V@45.9A, -12V@0.3A, +5VSB@3A | +3.3V@25A, +5V@20A, +12V@45.8A, -12V@0.8A, +5CXB@3A |
| MTBF | | 100k hours at 25 degree C, max. load, nominal input | |
| Approvals | cTUVus, CB, CE, FCC, T | TUV, CE, FCC, ROHS | FCC, ICES, CE, UL, cUL, RCM, TUV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC |
| Dimensions | 3.40 x 5.50 x 5.90 | 3.39 x 5.91 x 6.30 | 5.91 x 5.51 x 3.39 |
| Weight | 4.27 lbs. | 6.1 lbs. | 3.81 lbs. |
| Connectors | 1 x 24-pin1 x 8(4+4)-pin ATX12V/EPS122 x 8(6+2)-pin PCI-E5 x Mole5 x SATA 1x Floppy | Modular Cable:1 x 20+4-Pin Main Connector 1 x 4+4-Pin ATX12V/EPS12V Connector2 x 6+2-Pin PCI-E Connector6 x 5-Pin SATA Connector 3 x 4-Pin Peripheral Connector1 x 4-Pin Floppy Connector | 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 |
