The 390112-1 is a high-profile SO DIMM socket designed for dual read-out SDRAM memory modules with 144 positions and 0.8 mm pitch (metric DIMM). The socket features a nylon housing rated UL94V-0 with phosphor bronze contacts plated with 0.00025 mm minimum thick gold over 0.001 mm minimum thick nickel in the contact area, and gold flash over 0.001 mm minimum thick nickel in the soldering area. With a high-profile housing style (Dimension A: 6.60 inches / 220 mm), this socket is optimized for 3.3 Volt key type A applications and provides reliable electrical connections for memory module installations. The socket's dual read-out capability and robust construction make it suitable for high-reliability computing and server applications requiring stable memory module interfaces.