Special Order: MBXL VERT RCPT 3ACP+16S+2P Rectangular Power Connector Type: Header Connector & Housing Type: Receptacle Connector System: Board-to-Board Number of Positions: 21 Centerline (Pitch): 6.35 mm 2.54 mm 7.62 mm Header Receptacle Board-to-Board 21 | Rectangular Power Connector | Part Number: 2-6450550-4 | Internal Number: 2-6450550-4 | 6.35 mm | TE Connectivity