| 摘要 |
An electronic device fixed to a pair of rack columns that are separated by a certain distance. The electronic device includes a housing that includes side surfaces, each of the side surfaces opposing one of the rack columns when the housing is sandwiched between the pair of rack columns, and a pair of hook members that are supported slidably in a depth direction on the side surfaces, respectively, and engaged with the mounting hole of the rack columns, respectively.
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