2041119-1 is a 52-position express mini card socket designed for PCI Express expansion card interconnection in server, desktop, consumer, and notebook platforms. The socket features a stack height of 4.00 mm (0.157 in) with gold flash contact plating in the mating area, mounted on the top side of the PCB with a card centerline to PCB distance of 2.05 mm. It is fully compliant with PCI-SIG industry standards for high-speed data transmission and is capable of withstanding 50G mechanical shock testing. The contact manufacturing method provides stable normal force characteristics, ensuring reliable electrical connections. This socket is ideal for applications requiring compact expansion card solutions in portable and stationary computing devices, wireless communication equipment, and other platforms requiring PCI Express mini card connectivity.