Stac64™ Signal Receptacle Connectors - Series 34729Stac64™ signal Receptacle connectors that support low-level signal requirements.For 34803 Series Terminal female contacts see stock number 842-8172 or 724-1479 typical. These signal Receptacle connectors mate with series 34690 and 34691 male unsealed Headers, typical stock numbers 724-1387 and 724-1330 respectively.Molex Stackable Connection System, 2.54 mm - Stac64™