It's a DR11-M, basically a 32-bit-wide parallel output port. It's complement is the DR11-L, a 32-bit-wide parallel input port. Compare these with the rest of the DR11-* series, which are generally both input *and* output. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927