18P, MM 1.27, MOB, TH, KK, BOX Connector System: Board-to-Board Number of Positions: 18 Centerline (Pitch): 1.27 mm Centerline (Pitch): .05 in PCB Mount Retention: With Board-to-Board 18 1.27 mm .05" | Male-On-Board Connector & Micro-Match | Part Number: 8-215464-8 | Internal Number: 8-215464-8 | TE Connectivity | Micro-MaTch