1-5111105-2 is a right-angle pin header connector designed for ribbon cable interconnect solutions. This 64-position connector features a 0.100" x 0.100" (2.54 x 2.54 mm) centerline pitch with 0.025" (0.64 mm) square posts at the mating end. Key dimensions include A: 3.960" (100.58 mm), B: 3.800" (96.52 mm), C: 3.560" (90.42 mm), D: 3.400" (86.36 mm), and E: 3.100" (78.74 mm). The connector is part of the Universal Ejection Style Pin Headers series with PC1 housing and is RoHS compliant. It is commonly used in cable-to-board applications requiring reliable ribbon cable connections in electronic systems.