* [[Fischertechnik Interface]] for use with the [[Fischertechnik Trainingsrobot]], the [[Fischertechnik Plotter/Scanner]], and the [[Fischertechnik Computing Experimental]] kit.
* [[HDCPC]] (what is this?) (added 21 August 2006 by 85.218.166.50) (according to [[Dobbertin Harddisc|this page]], HDCPC is a modern IDE harddisk interace, but it's unknown who developed that thing?)
* [[Hexam]] ([[ACE Software]])
* [[Jagot & Leon Interface Cards]] ([[Jagot & Leon]])
* [[KDS Power Controller]] (a box with eight relays) ([[KDS Electronics]])