The MDX, a high reliability D-Subminiature connector, features size 20 fixed contacts and is available with 9, 15, 25, 37, and 50 contacts. It employs the unique PosiBand contact system, a closed entry female contact system that provides lower average insertion force during mating, enhanced reliability, and increased electrical performance over legacy designs. MDX connectors use solid machined contacts and meet the performance requirements of IEC 60807-2, performance level one. Contact resistance is 0.005? and single contact current ratings are as high as 14A. Price for a nine-position female straight PCB-mount version is $3.35 each/250. POSITRONIC INDUSTRIES, Springfield, MI. (800) 641-4054.