Dell G Series G15 5511 palmrest junction board- this is the keyboard controller board, often referred to as the keyboard MCU (micro controller unit) board, this also acts as a junction board connecting the keyboard to the motherboard.
Compatible Dell Laptops:
G Series G15 5511
DPN: M39DX
Alternate Part Numbers:
board: 132X0; GDL53; LS-K452P
cable: 3KW84; GDL55; NBX0002RM00