104130-4 is a 20-position double-row shrouded header from the AMPMODU interconnection system, designed for reliable board-to-board connections. This header features a 0.100 inch [2.54 mm] centerline pitch with 0.025 inch [0.64 mm] square posts. Key dimensions include an overall length (A) of 1.300 inches [33.02 mm], pin-to-pin dimension (B) of 0.900 inches [22.86 mm], C dimension of 0.585 inches [14.90 mm], and D dimension of 0.917 inches [23.29 mm]. The shrouded design provides polarization and protection for the contacts, making it suitable for general-purpose electronic interconnection applications where secure mating and alignment are required.