ExpressCard: A Sure Thing That Failed - Stephen Foskett, Pack Rat
Verbatim SSD ExpressCard 64GB Review: Unlock the potential of that unused ExpressCard slot on your laptop by adding up to 64GB of SSD storage, courtesy of the Verbatim SSD ExpressCard - PC
Amazon.com: expresscard ssd
For old ThinkPads: Retrofit NVMe SSD with an ExpressCard adapter - storage
1.8 GMonster-Express card 54 SSD - PhotoFast
cenatek SSD ExpressCard Review: - Servers & Storage - Flash Media - PC World Australia