JST EH series 2.5mm pitch single-row shrouded top-entry (straight) PCB headers. They have integral keying which ensures correct polarisation when mated. For corresponding crimp socket housings see RS 311-6209 typical; for IDC socket housings see RS 311-6287 typical.
Note
Manufacturers part numbers BxxB-EH-A have 3.2mm long pins; part numbers BxxB-EH have 4.0mm long pins.