Optical drives are still practical for many users, whether to play old CDs and DVDs, install software, or create ...

I haven't seen an adapter, and if they are available I'd suspect they will be considerably more expensive than for the 2.5" drives. The reason is that the 1.8" drives use 3.3v for power, not 5v.

You are about to transfer some important files from an external drive to your Mac, and suddenly you get the message “Disk Not Ejected Properly” The transfer fails, and you have to start all over again ...