This is the key / insert used to block one of the holes in the terminal
housing, so that the connector can be plugged into the PCB pinouts / header
in the correct orientation.
POLARIZING KEY - 10 PCS/STRIP
SPECIFICATIONS
PRODUCT NAME
Polarizing Key - 10 pcs/strip
PRODUCT CODE
CPX079
NOTE
Suitable for 0.1" (2.54 mm) pitch terminal housing
USAGE GUIDES
CPX079: 0.1 inch (2.54 mm) pitch polarizing key. Insert used to block hole of
header connector, for correct connection / orientation to motherboard pin-outs.