3M High Density I/O Connectors and Assemblies are based on the long-established Delta Ribbon Centronics®-style Mini Delta Ribbon (MDR) System. The 3M Mini Delta Ribbon (MDR) Connectors are a half pitch interconnect system designed to meet the needs of high speed/density I/O applications. The 3M MDR system is a well-proven solution that provides shielding against EMI/ESD and reliable connection through the pre-loaded ribbon contacts, as well as 0.050" centerlines. The 3M Mini Delta Ribbon (MDR) Connectors and Assemblies allow mass termination through IDC U-shaped contacts and offer a wide range of pin counts and form factors to enable design flexibility.