The Mitsubishi Electric R68B Extension Base Rack Backplane Unit is an eight-slot backplane designed for Mitsubishi Electric rack systems. It serves as the foundational backbone in a modular rack, providing connectivity for eight slots to host compatible modules. Manufactured by Mitsubishi Electric (Mitsubishi Elec), the R68B is intended as an extension base backplane to support expanding a Mitsubishi rack with additional modules while keeping a compact form factor.
