How much did the first commercial solid-state drive (SSD), introduced by SanDisk in 1991, cost, and what was its capacity?

SanDisk’s first commercial SSD, introduced in 1991, had a storage capacity of 20 megabytes (MB) and cost about $1,000. Compared to today’s SSDs, it was quite expensive and had much lower storage capacity, but it paved the way for the development of more advanced and affordable SSD technology.