Abstract: A host device of dual power supply includes a chassis, a motherboard disposed in the chassis, at least one storage unit electrically coupled to the motherboard, two power supplies electrically coupled to the motherboard and the storage unit for supplying power to the motherboard and the storage unit, and a control unit electrically coupled to the motherboard, the storage unit and the power supply. When a boot signal is received by the control unit, one of the power supplies provides a voltage required by the storage unit at the moment of booting and during operations that follow, and the other power supply is driven to provide a voltage required by the motherboard at the moment of booting and during operations that follow.

Abstract: A host device with an installable power supply comprises: a casing which is a case with an installation space enclosed inside, and the installation space is partitioned into at least a power supply installation space and a plurality of uninterruptible power supply (UPS) installation spaces disposed adjacent to the power supply installation space; a power distribution board installed in the casing, and having an end extended to a junction of the power supply installation space and the UPS installation space, and the power distribution board further has a plurality of charging circuit boards; a power supply detachably coupled to the power distribution board; and a plurality of uninterruptible power supplies detachably coupled to the charging circuit board on the power distribution board.

Abstract: A machine box structure capable of loading multiple systems includes a main casing that is a hollow casing in which two ends have openings, at least one partition member further configured in the opening to divide the opening into a plurality of removable slots; and a plurality of system loading boxes that are a casing in which its shape corresponds to the removable slot removably passing through the removable slot, and the system loading box having a system configuration space therein.

Abstract: A shock absorber for absorbing vibration of an article with respect to a stationary member, the article including a coupling element formed with a notch unit. The shock absorber includes an elastic sleeve member having an external surface to permit mounting of the coupling element there around via the notch unit, and a support post. The elastic sleeve member further has an axial hole. The support post is fixed on the stationary member, and extends through the axial hole in said elastic sleeve member. The support post has an intermediate section formed with an absorbing recess in alignment with an inner peripheral portion of the coupling element contacting the elastic sleeve member and confining the notch unit.