Patent ID: 7780481

Claim:
A power supply apparatus comprising: a main body; a power input device coupled to an input terminal of said main body; a first power output device including a first cable and a first connector, wherein said first cable has a first end connected to said main body and a second end connected to a first surface of said first connector, and said first connector includes at least a stop block and at least a fastening element; and a second power output device including a second cable and a second connector, wherein said second cable has a first end connected to said main body and a second end connected to a first surface of said second connector, and said second connector includes an extension part extended from two opposite edges of said first surface and a retaining wall, wherein an edge of said retaining wall is confined by said stop block and said extension part is clamped by said fastening element so as to selectively combine said first connector with said second connector as a composite connector assembly and facilitate securely fixing said composite connector assembly in a common power socket, thereby transmitting electricity from said first and second output devices to said common power socket, wherein said stop block is extended from an edge of said first surface and protruded from a first sidewall adjacent to said first surface of said first connector; wherein said stop block includes a first segment and a second segment, wherein said first segment and said second segment are substantially perpendicular to each other, and said second segment is substantially parallel to said first sidewall, wherein said fastening element is extended from an edge or a corner of said first surface of said first connector and partially protruded from said first sidewall and a second sidewall of said first connector, said second sidewall being disposed adjacent to said first sidewall.