alan.b.pearce@stfc.ac.uk wrote: > I suspect that a backplane using DIN 41612 connectors would suit the OP f= ine,=20 >as the dimensioning of the connector is defined by the rack mount=20 >system. The single row 32/dual row 64/triple row 96 pin format will=20 >stand on end in a 3U rack unit. The nominal board size of 100mm wide=20 >will go in 3U rails on edge using these connectors. Vero do a selection (at a price):- or if that wraps:- http://tinyurl.com/5twzozq --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .