Dell Inspiron 14 7430 2-in-1 Owner's Manual page 42

Steps
1. Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless card that is supported by your computer.
Table 25. Antenna-cable color scheme
Connectors on the
wireless card
Main
Auxiliary
2. Align the notch on the wireless card with the tab on the M.2 wireless-card slot on the system board.
3. Slide the wireless card into the M.2 wireless-card slot on the system board.
4. Place the wireless-card bracket on the wireless card and align the screw hole on the wireless-card bracket with the screw
hole on the wireless card.
5. Replace the screw (M2x3) that secures the wireless card and wireless-card bracket to the system board.
Next steps
1. Install the base cover.
42 Removing and installing Customer Replaceable Units (CRUs)
Antenna-cable color
White
Black
Silkscreen marking
MAIN
AUX
△ (white triangle)
▲ (black triangle)