| CPC H05K 5/03 (2013.01) [H05K 5/0217 (2013.01); H05K 5/0221 (2013.01); H05K 5/0247 (2013.01); H05K 7/14 (2013.01); H05K 7/1417 (2013.01); H05K 7/1422 (2013.01); H05K 7/1427 (2013.01); H05K 7/1488 (2013.01); G06F 1/181 (2013.01)] | 19 Claims |

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1. A casing assembly, adapted for a carrier, the casing assembly comprising:
a casing, adapted to be stacked on the carrier;
an actuating component, disposed on the casing; and
an engagement mechanism, comprising a first component and a second component, wherein the first component and the second component are connected to each other and are movably disposed on a surface of the casing;
wherein the actuating component is engaged with an end of the first component located away from the second component so as to cause the second component to be engaged with a first post of the carrier by pushing the first component;
wherein the actuating component and the engagement mechanism are disposed on different sides of the casing, respectively.
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