Front removable expansion card module strcuture

An improved front removable expansion card module structure, applicable for electronic devices, comprising:

• a casing, having a cover panel installed at the top of the casing, and an opening formed on a lateral side of the casing;
• a first adaptor interface, having a first pin formed at an end of the first adaptor interface and inserted into an erect baseboard, and a first slot formed on the first adaptor interface;
• and
• an adapter frame, entered from the opening, and disposed in the casing, and having a second adaptor interface inserted into the first slot of the first adaptor interface, and one or more second slots formed on the second adaptor interface and parallel to the opening;
• such that a maintenance person simply needs to pull the adapter frame from the opening to separate the second adaptor interface from the first slot, and then draw the adapter frame to the outside completely for maintenance and repair, without removing the cover panel from the casing.