This is the power button, with cable, compatible with the Dell Vostro 5401 and 5402 laptops. This board mounts to the underside of the palmrest assembly.
Compatible Dell Laptops:
Vostro 5401
Vostro 5402
DPart Number: M84KW
alt Part Number's:
MKB_V14_POWER_FFC
450.KN02.0021