Quantity   Component name
2 × USB Extender Board https://oshpark.com/shared_projects/04zdT7Hc
4 × USB A Connector https://www.digikey.com/short/31vbt8
1 × Sliding Switch http://www.frys.com/product/1945881?site=sr:SEARCH:MAIN_RSLT_PG
2 × Stacked USB A Receptacle https://www.digikey.com/short/31vbtr
2 × Double USB Receptacle Board
1 × Case Top
1 × Base Bottom
4 × Raspberry Pi Standoff
1 × 30mm 5V Fan
1 × Raspberry Pi 3
1 × MicroSD Card with RetroPie
1 × Ribbon Cable (At least 6 pin)