Price is 25-PACK Dual-Row 0.1" 2.54mmPLUGS, IDC, 20 Position MALE, Polarized IDC Flat Ribbon crimp Connectors. These connectors mate with any standard 0.1" spaced dual-row pin. The insulation displacement (IDC) contacts on these connectors allow them to be quickly and easily crimped onto flat ribbon cable. These are female sockets designed to connect to male pin headers. These connectors have a polarizing tab in the middle to ensure correct orientation when used with a shrouded header ("box header"). Detailed Description: NUMBER OF PINS: 20 2X10 IDC Male Plugs DUAL ROW IDC MALE FD CONNECTOR WITH POLARIZING CENTER BUMP MATES WITH 0.1" (2.54mm) PITCH FC Sockets TERMINATES TO .050" 1.27mm FLAT RIBBON CABLE