DELL Latitude E7470 Palmrest Junction Board Ribbon Cable 3N9KX

Genuine Dell OEM Replacement Cable

This is a genuine Dell OEM ribbon cable designed specifically for the Latitude E7470 laptop. It connects the palmrest junction board to the motherboard, restoring the link for components such as the keyboard, touchpad, or fingerprint reader. The part number is 3N9KX, with alternate references AAZ60 and NBX0001TO00. Buyers needing a cable for a different Dell model or a different internal connection cannot use this part.

Reliable Signal Continuity Under Daily Use

The cable maintains consistent signal transmission between the palmrest assembly and the mainboard during sustained typing, pointing, or biometric authentication sessions. As a passive flexible circuit, its electrical behaviour does not degrade with prolonged activity the way active components might. There are no active electronics on the ribbon itself that would throttle or overheat under continuous load.

Passive Component With No Thermal or Power Impact

This ribbon cable draws no power and generates no heat of its own, adding zero thermal load to the laptop chassis. It operates silently because it contains no moving parts, fans, or coils. Installation simply routes the flexible strip between the palmrest junction board and the motherboard connector without affecting the system's power draw or acoustic profile.