Connectors, Pin Connectors, Mini Spring Socket, Pin receptacles, PCB sockets

 DF17 Series 50 Position SMT Dual Row Straight 0.5 mm Pitch Header

https://www.futureelectronics.com/p/interconnect--pin-and-socket-connectors--header-plug-board-mount/df17-2-0-30dp-0-5v-57-hirose-electric-5044228