| CPC G06F 1/185 (2013.01) | 11 Claims |

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1. A graphics card expansion device, comprising: a main chassis comprising a motherboard and a first power source; an expansion chassis, wherein the expansion chassis comprises: at least one graphics card storage box, the at least one graphics card storage box is equipped with at least one graphics card; at least one second power source, the at least second power source provides power to at least one graphics card in the at least one graphics card storage box; at least one adapter card, the at least one graphics card storage box communicates with the motherboard in the main box through the at least one adapter card; and the expansion chassis comprises a plurality of second power sources, a plurality of graphics card storage boxes, and a plurality of adapter cards, and the plurality of second power sources, the plurality of multiple graphics card storage boxes and the plurality of adapter cards are arranged in a one-by-one manner.
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