| 摘要 |
An electronic device includes a main body, an expansion card holder, and a protective cover assembly. The main body defines an opening. The expansion card holder is located in the main body adjacent to the opening. The expansion card holder defines a bay facing the opening to receive an expansion card. The protective cover assembly includes a rotary shaft unit, and a metallic cover rotatably connected to the main body via the rotary shaft unit. The metallic cover includes a cover portion covering the opening, and a resisting portion extending from the cover portion and resisting the main body. The resisting portion provides resilient force impelling the cover portion to cover the opening automatically.
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