The TE Connectivity 640456-6 is a six-position, single-row MTA-100 vertical through-hole PCB header with 2.54 mm contact spacing, tin-plated square pins, and a partially shrouded, polarized friction-lock interface (
TE product page). Its common use is connecting a removable cable harness to a PCB for low-voltage power and general-purpose signals; the connector does not define a communications protocol or a fixed signal assignment.