The 5535059-4 is a Eurocard Type C receptacle connector featuring 64 positions across rows A and C, designed for direct termination to printed circuit boards. This connector utilizes compliant press-fit posts with a solder tail contact length of 4.83 mm and incorporates a contact cross section of 0.30 x 0.61 mm, ensuring reliable electrical connections. The housing is constructed from polymer material with UL 94V flammability rating, and the contact mating area is plated with DIN 41612 Class 2 material for enhanced durability. The connector is RoHS and ELV compliant, features mounting ears with toolless flat rock installation, and operates at DIN Level II. This connector is ideal for industrial and telecommunications applications requiring robust, high-density interconnections on PCBs.