The ONLY 2MB chip expansion cards are the "Mega Chip
" variants (lots of people made different flavours) They contain 1Mbyte of RAM and a SuperFat Agnus chip.
It's only for OCS and Half ECS Amiga's. Such as A500 (non plus), A2000, CDTV etc.
A500+ and beyond all have either Superfat Agnus chips or the Alice chip which can both access 2Mb chip maximum
I dont think this is possible outside UAE.