Abstract: A hard drive storage device comprises a hard drive enclosure (10) configured to accommodate a hard drive (20), and a hub (30) disposed in the hard drive enclosure (10). The hard drive (20) is electrically connected to the hub (30). The hub (30) comprises two or more USB interfaces (31) arranged at a side wall of the hard drive enclosure (10). The hard drive storage device integrates together a storage functionality of the hard drive and a data interface expansion functionality of the hub, and is easy to use and carry.

Abstract: The present disclosure discloses a direct-current power supply expansion card. This direct-current power supply expansion card comprises a circuit board, an input interface arranged on the circuit board, a direct-current output interface arranged on the circuit board, and a fixing insertion plate connected to the circuit board, the fixing insertion plate being used for fixing the circuit board onto a host case. The technical solution of the direct-current power supply expansion card in the present invention converts, by means of the direct-current power supply expansion card, a power supply of a desktop computer into a direct-current power supply capable of charging a hand-held device, thereby improving the convenience and safety of charging for a user.

Abstract: Disclosed are an electrical power supply expansion card and a computer case. The electrical power supply expansion card comprises a housing and a circuit board. The circuit board is arranged on the housing, and the housing is installed in the computer case. The circuit board is provided with at least one peripheral interface, and is further provided with at least one power source interface. The at least one power source interface is detachably connected to a power source in the computer case so as to obtain electric power and output electric power via the at least one peripheral interface. The technical solution provided in the present invention can enable the expansion card to be an expanded power source of the power source in the computer case, thus supplying power to an external device, thereby improving the usability of the expansion card.

Abstract: A plug strip. A cover capable of covering receptacles is hingedly connected to a receptacle end face; and a first notch and a second notch are respectively provided at both side edges of the cover. During use, an electrical wire passes through the first notch or the second notch to be plugged into the receptacle or a USB output interface, so that the cover can be kept closed. Therefore, dust pollution and occurrence of an electric shock accident due to long-time use can be effectively prevented.

Abstract: The present disclosure discloses a direct-current power supply expansion card. This direct-current power supply expansion card comprises a circuit board, an input interface arranged on the circuit board, a direct-current output interface arranged on the circuit board, and a fixing insertion plate connected to the circuit board, the fixing insertion plate being used for fixing the circuit board onto a host case. The technical solution of the direct-current power supply expansion card in the present invention converts, by means of the direct-current power supply expansion card, a power supply of a desktop computer into a direct-current power supply capable of charging a hand-held device, thereby improving the convenience and safety of charging for a user.

Abstract: Disclosed are an electrical power supply expansion card and a computer case. The electrical power supply expansion card comprises a housing and a circuit board. The circuit board is arranged on the housing, and the housing is installed in the computer case. The circuit board is provided with at least one peripheral interface, and is further provided with at least one power source interface. The at least one power source interface is detachably connected to a power source in the computer case so as to obtain electric power and output electric power via the at least one peripheral interface. The technical solution provided in the present invention can enable the expansion card to be an expanded power source of the power source in the computer case, thus supplying power to an external device, thereby improving the usability of the expansion card.