The MKII Is for both the 4000 and 1200. It can be installed on either the clockport of the 1200 or the IDE port on the 4000.. Sorta one size fits most.
I have one installed on my 4000T to create C=64 and Atari 800 disks (5 1/4) and ald\so have a HD 3 1/2 floppy for all amiga and apple stuff.. Easy to setup. Good Luck
