This was on sale when new A1200s from C= were being sold so people who didn't want to void the warranty had no choice as shops were not allowed to open them up and upgrade them. You had to buy an overpriced 1200HD from day one or one of these so if you remember that then it obviously is not useless.
Today it is redundant given that you can pick up 2.5 inch IDE drives of 4gb capacity for pennies I agree.
Not having SIMM slots or a slot with a caddy for users to install their own hard drives was very short sighted of Commodore and only made it look like a toy to people who were considering an A1200 vs a low end 286. CPU/VIDEO/ZORRO slots we could all do without but not making the HD and memory easily (ie same cost as a PC) user upgradeable with cheap off the shelf PC/notebook parts was a terrible design idea.
