This is the IO Circuit Board, sometimes called a Databoard- this houses one USB port SD Card Reader Slot, and the RJ-45 ethernet network port; that connects to the 3135 motherboard.

Compatible Dell Laptops/Notebooks:
Inspiron 11 (3135)

DPN: 4VMN5

ALT Part Number's:
NDYP5

alternate Part Number's:
DA0ZM5PI6C0