常见电源尺寸
| 名称 | 长(mm) | 宽(mm) | 高(mm) |
| AT | 150 | 140 | 86 |
| ATX | 150 | 140 | 86 |
| SFX | 125 | 100 | 63.5 |
| SFX-L | 125 | 130 | 63.5 |
| TFX | 175 | 82 | 41 |
| FLEX(1U) | 150 | 81.5 | 40.5 |
| 名称 | 长(mm) | 宽(mm) | 高(mm) |
| AT | 150 | 140 | 86 |
| ATX | 150 | 140 | 86 |
| SFX | 125 | 100 | 63.5 |
| SFX-L | 125 | 130 | 63.5 |
| TFX | 175 | 82 | 41 |
| FLEX(1U) | 150 | 81.5 | 40.5 |
