Abstract: A disk array structure includes a housing, a connection seat, and at least two disks. The housing contains at least two transversal holding spaces, and the connection seat is assembled with the housing, containing a circuit board, at least two connectors, and a rear sheath casing. Each connector is electrically connected at an inner side of the circuit board, and the rear sheath casing is assembled at an outer side of the circuit board, containing plural connection holes and a toggle switch. Each disk is loosely installed in each holding space of the housing, with one end electrically connected with each connector of the connection seat, and the other end having a handle. The structure is carried conveniently, the disks are extracted conveniently, heat is dissipated quickly, the structure is manufactured quickly, manufacturing cost is reduced, and the structure serves as a mouse pad and is toggled for use conveniently.

Abstract: A digital security monitoring system includes a main control unit, at least one camera, and a recording unit. The at least one camera is electrically connected to the main control unit. The main control unit is also electrically connected to the recording unit which includes a robotic arm, at least two optical disc recorders, and an optic disc storage area. The mentioned optical disc recorders and the optic disc storage area are arranged at a location adjacent to the robotic arm to allow the robotic arm to access the optic disc storage area and also to allow the at least two optical disc recorders to carry out uninterrupted disc recording operations. Thus, it provides a real-time recording of video data from the camera, non-interrupted recording operation, extended time of video data protection, easy filing and management and timely displaying of data, etc.

Abstract: A disk array structure includes a housing, a connection seat, and at least two disks. The housing contains at least two transversal holding spaces, and the connection seat is assembled with the housing, containing a circuit board, at least two connectors, and a rear sheath casing. Each connector is electrically connected at an inner side of the circuit board, and the rear sheath casing is assembled at an outer side of the circuit board, containing plural connection holes and a toggle switch. Each disk is loosely installed in each holding space of the housing, with one end electrically connected with each connector of the connection seat, and the other end having a handle. The structure is carried conveniently, the disks are extracted conveniently, heat is dissipated quickly, the structure is manufactured quickly, manufacturing cost is reduced, and the structure serves as a mouse pad and is toggled for use conveniently.