Video transcoding card with two transcoding assemblies stacked on one another

A video transcoding card, comprising:

• a first transcoding assembly, comprising a first circuit board, a plurality of first transcoding boards, and at least one first main electrical connector, wherein the plurality of first transcoding boards and the at least one first main electrical connector are disposed on the first circuit board and are electrically connected to the first circuit board;
• and
• a second transcoding assembly, comprising a second circuit board, a plurality of second transcoding boards and at least one second main electrical connector, wherein the plurality of second transcoding boards and the at least one second main electrical connector are disposed on the second circuit board and are electrically connected to the second circuit board, the at least one first main electrical connector and the at least one second main electrical connector are connected to each other so as to hold the second circuit board to be located above the first circuit board, and the plurality of second transcoding boards are electrically connected to the first circuit board via the second circuit board, the at least one second main electrical connector, and the at least one first main electrical connector;
• wherein the video transcoding card further comprises a plurality of first studs, the first transcoding assembly further comprises a first back plate, the second transcoding assembly further comprises a second back plate, the first circuit board is stacked on the first back plate, the first circuit board is located between the first back plate and the plurality of first transcoding boards, the first circuit board is located between the first back plate and the at least one first main electrical connector, the second circuit board is stacked on the second back plate and located between the second back plate and the plurality of second transcoding boards, the plurality of first studs are disposed through the first circuit board and screwed into the first back plate, and ends of the plurality of first studs located away from the first back plate support the second back plate.