On 03/06/2015 11:30 AM, Pontus Pihlgren wrote: I've put a couple pictures of the backplanes on my web site: http://pico-systems.com/images/qbusbp.jpg http://pico-systems.com/images/qbusps.jpg I have two of these units. I just noticed that they have Compuserve property tags attached to the power supplies. Jon