Due to some brand specific technology from Burton snowboards, you will one of the following hole patterns on your snowboard.
Burton 3D is a 3 hole pattern on some Burton snowboards. You can put almost any non-Burton EST bindings on them as well.
Burton ICS Channel is the mounting system now found on most Burton snowboards and which has a channel for each binding. These are designed to be used with Burton EST bindings.
Standard 4 Hole is what you'll find on all non-Burton snowboards, and refers to the fact that you use 4 screws to mount each binding. You can put any binding but Burton EST bindings on them.