* [[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?)
* [[Jagot & Leon Interface Cards]] ([[Jagot & Leon]])
* [[KDS Power Controller]] (a box with eight relays) ([[KDS Electronics]])
* [[Kersten PC Emulator]]
* [[Maplins 8bit Input Port]] ([[Maplin]]) (among others for use with Maplin's Weather Satellite Decoder)