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The workhorse of the Blue Heat family, the Blue Heat/PCI 20mA CL offers the ideal connectivity solution for applications in noisy environments over long cable lengths. It features eight ports of 20mA Current Loop interface, providing robust, industrial strength communications in the most demanding of environments. With support for the most popular operating systems and a variety of cabling options, the Blue Heat/PCI 20mA CL will ensure your data transfers proceed without disruption.