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The IBM 40N4823 RS485 Interface Card is an OEM communication expansion card designed to add RS-485 serial connectivity to compatible IBM systems and devices. This card enables robust, long-distance serial communication commonly used in industrial controllers, POS equipment, networking hardware, and automation systems. Built to IBM’s enterprise standards, it delivers dependable serial data transmission and is an ideal replacement or upgrade for systems requiring RS-485 support.
 
C9F2 Non Data Device