| 摘要 |
A power supply includes a shell. The shell includes a power module to convert alternating current power into direct current power. The power module includes a control unit. The shell defines a rectangular slot to accommodate either a battery or fans. When the rectangular slot accommodates a battery, the battery is electrically connected to the control unit, and the control unit charges the battery. The battery supplies power for a nonvolatile memory. When the rectangular slot accommodates fans, the fans are electrically connected to the power module. |
