Genuine Dell OEM Inspiron 13 (7390) 2-in-1 USB and Audio Port IO Circuit Board- this houses 1 USB port, micro SD card reader slot, and the audio port.
Compatible Dell Laptops/Notebooks:
Inspiron 13 (7390) 2-in-1
DPN: M3J87
alt Part Number's:
JEDI13 WHL - U IO