Available. The Mitsubishi Electric Q65B is an extension base unit designed for the MELSEC-Q Series programmable logic controllers (PLCs). This unit provides five expansion slots, allowing for the addition of various I/O modules to enhance system capabilities. It requires one power supply module and is compatible with MELSEC-Q series modules. The Q65B measures 245 mm in width, 98 mm in height, and 44.1 mm in depth, with a weight of 0.28 kg. It is suitable for applications requiring modular expansion in industrial automation systems.