Yes, it is 16 bits.
Well, i finally had a try.
Hooked to a 40 GB FAT 32 device, the board works perfect on windows 7 with my old laptop, but not with my OS 3.1 A1200, though compactflash.Device is installed.
Prepcard see the board but report some errors.
Maybe lack of power from the miggy.
This board seems also to be the same that PCMCIA controllers from ZIP drives.