The adjdinkit adjustable rack mount din rail kit with top hatminig rails makes mounting your din rail equipment in a 19 inch server rackcabinet or wall plate simple without wasting space due to special bracket requirements for each piece of equipment this 19 inch din rail mounting kit includes the three most commonly used din rail systems top hat miniature top hat and g type includes three types of din rails top hat miniature top hat and g type fits all standard 19 racks meets ansi