1.27mm MECF series PCB micro edge card sockets that offer a 28+ Gbps solution with a double row design that accepts up to 100 polarized gold plated contacts. These 1.27mm MECF series micro edge card socket connectors are PCB vertical mounting with PCB alignment pins and accept both 1.60mm and 2.36mm thick cards. The 1.27mm MECF micro edge card sockets with part numbers suffixed with -WT have a weld tab option which is standard on 2.36mm card thicknesses and optional on 1.60mm card thicknesses.