HP 826399-001 Cable Kit is a replacement cable set listed for the HP ProBook 440 G3. It brings together several internal cable assemblies used in different parts of the notebook, making it a service part for cable replacement during repair.
The kit contains a display/webcam cable, along with cables for the power button board, card reader, battery connector, and function board. The display/webcam cable is used in the display assembly, while the other listed leads connect their respective notebook components.
This is a parts kit rather than a single display cable. The HP service guide identifies each of these cables as part of the same Cable Kit, part number 826399-001.