The product is a USB / HDMI Port I/O Daughter Board for the Apple MacBook Pro 13" A1502 Late 2013 2014. It includes an HDMI and USB I/O board, as well as an Airport card,and has the model number 820-3539-A. This board is compatible with the Apple MacBook Pro Retina 13" A1502 and is designed specifically for use with the late 2013 to mid 2014 models. The black board from Apple is a replacement part that offers connectivity options such as HDMI and USB, plus your wifi and Bluetooth connections, making it an essential component for the MacBook ProA1502 late 2013 to mid 2014.
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