This is the LED light circuit board that indicates the system's power, battery, and HDD status, compatible with the Dell Latitude 9430 and 9420 systems.
Compatible Dell Laptops:
Latitude 9420
Latitude 9420 2-in-1
Latitude 9430 2-in-1
Latitude 9430
D Part Number: 226MK
alt Part Number's:
FDB41
LS-K16AP
FDB41_LOG_UP_LED_FFC
NBX0002QC00