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: DM82J
alt Part Number's:
Jedi13 CML IOBD