Introducing the GCM40DCSD, a high-performance board-to-board PCB connector designed for demanding applications. Featuring a female gender with two rows and a clearance hole mount type, this connector ensures secure and reliable connections. The termination method via through-hole soldering guarantees robust attachment. Constructed with PA9T and phosphor bronze materials, it offers excellent conductivity and durability. The gold-plated contacts provide optimal signal transmission and corrosion resistance. With a pitch of 3.96mm and a voltage rating of 950 VAC, it meets stringent electrical requirements. Its hairpin contact type and straight orientation facilitate easy mating. With 80 positions and a tail length of 4.06mm, it accommodates multiple connections with ease. Operating within a wide temperature range of -65 to 125°C, it is suitable for harsh environments. The connector's compact design, measuring just 15.49mm in height and 9.4mm in width, saves space on the PCB. Termination plating with matte tin ensures solderability. Classified under high-reliability standards, it guarantees consistent performance. Ideal for use in aerospace, defense, and other mission-critical applications, the GCM40DCSD sets a new benchmark for connectivity solutions.