1658620-4 is a 20-position preassembled ribbon cable receptacle connector designed for reliable ribbon cable interconnect solutions. It features Duplex contact plating and is designed to mate with 0.050" x 0.100" 2-row pin header grids. The connector has dimensions of A: 0.950" (24.13 mm), B: 1.180" (29.97 mm), and C: 0.900" (22.86 mm), and is compatible with strain relief part number 499252-2. This receptacle is part of TE Connectivity's System 50 ribbon cable connector family, providing dependable connections in various electronic applications requiring ribbon cable termination.