Transcend TS16GSSD34E: SSD ExpressCard for those on the Go...
New ThinkPad Mod: ExpressCard to NVMe SSD Adapter - Thinkpads Forum
Express Card ExpressCard 34mm a usb 2.0 + eSata Hard Disk SSD Adapter e SATA sil3531 Chipset - AliExpress
Hama ExpressCard 34 + USB 2.0 SSD Hard Drive, 4 GB : Amazon.com.au: Computers
Omnikey 4321 Mobile ExpressCard 54 - Internavigare Shop
StarTech.com Adattatore scheda ExpressCard SuperSpeed USB 3.0 a 2 porte, 5Gbps, Scheda ExpressCard 3.0 da 54 mm con montaggio a filo e supporto UASP (ECUSB3S254F) : Startech: Amazon.it: Informatica