3M 5100 Series Right Angle Through Hole Mount PCB Socket, 50-Contact, 2-Row, 2.54mm Pitch, Solder Termination

5100 series 2.54 x 2.54mm polarized right angle PCB mount sockets with centre bump polarization. These 5100 series 2.54mm pitch PCB socket connectors mate with low profile shrouded headers and are used in boardstacking applications such as mother/daughter board and allow two PCBs to be mounted in tandem using a 90° socket and 90° header.