[roders]

I'm looking to get some vga adaptor dongles for a projector I've recently bought, although I'm a little confused by the plethora of dongles available, what I want to know is, are the Mini DVi to VGA and Mini VGA to VGA adaptors actually the same thing as the connection (to the Mac) looks similar.

[seanc]

That all depends on what Mac you have.

[roders]

Well the projector is going to be used with various Mac's and PC's, it has a VGA out, and finding a standard DVI to VGA adaptor shouldn't be much of a prob, but I'm just wondering about Mac with a Mini DVI connection (aka MacBooks, IMac G5 upwards etc) I think there's also a Mini VGA out on some older Mac's too, just wondered if one adpator would work for both.

[seanc]

MacBooks - Mini DVI to VGA
iBooks - Mini VGA to VGA

So you'll need to have different adapters for different Macs.

Mactracker will tell you what VGA/DVI connectors your Macs have.

[analogika]

Originally Posted by seanc 

MacBooks - Mini DVI to VGA
iBooks - Mini VGA to VGA

iMac G5 - mini VGA to VGA
iMac Intel - mini DVI to VGA
MacBook Pro / Mac mini - normal DVI to VGA.
MacBook Air - micro-DVI to VGA.

[tooki]

iBook (G3 with slot-loading discs), iBook G4, iMac G4: Mini-VGA
PowerBook G4 12": mini-VGA on early ones, mini-DVI on later ones

The upshot is, assuming it's a VGA projector, you need to have available (perhaps chained down with cable ties so people can use whichever they need:

1x DVI->VGA adapter (which shipped with most Macs that need it)
1x mini-DVI->VGA
1x mini-VGA->VGA

I wouldn't bother buying a micro-DVI->VGA for a MacBook Air, since they all ship with it standard in the box, so every owner of those Macs has one.