http://support.apple.com/kb/HT3235 that helps you identify what adapter you need. -sandor On Mar 28, 2012, at 6:24 PM, CPMC Ophthalmic Diagnostic Center <cpmceyelab@xxxxxxxxxxxxxxxx> wrote: > OK all of you Mac Heads. I need a DVI to VGH adaptor to connect a Mac Book > to a PC Projector for Grand Rounds > > A dizzying array of adaptors on Amazon.com. They all LOOK alike, with > different discriptions. All say “for Macbook ) > > Yet, how come so many? I already ordered one I thought would work and the > female end to connect to the MacBook is too large > > Don’t wish to go down this road again. Why not just one generic size? > > D. > > Denice Barsness, CRA, COMT, ROUB, CDOS, FOPS > Ophthalmic Diagnostic Center > CPMC Department of Ophthalmology > 2100 Webster Street Suite 212 > San Francisco CA 94115 > (415) 600-3937 FAX (415) 600-6563 >