This is a genuine Dell replacement Right Side IO Circuit Board with USB jacks, Audio ports, and RJ-45- that connects to a *Discrete Video Motherboard for the Dell Latitude E6400, E6400 ATG, and Precision M2400.
Compatible Dell Laptops:
Latitude E6400
Latitude E6400 ATG
Precision M2400
DPN: W946D
*IMPORTANT NOTE: This IO board is compatible ONLY with E6400/M2400 motherboards with Discrete Video. Please Make sure your system has a Discrete video chipset before ordering. NVIDIA Quadro NVS 160M is an example of a discrete video chipset.