Amazon.com: StarTech.com 1 Port Flush Mount ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support - ExpressCard USB 3.0 Adapter (ECUSB3S11), Green : Electronics
PE3A (PCI-Express or USB 3.0 to ExpressCard Adapter) - M-FACTORS Storage
PE3B (Mini PCIe Card to ExpressCard adapter) - M-FACTORS Storage
PCI Express PCIe USB 2.0 to Express Card 34/54 mm Adapter ExpressCard Reader | eBay
ExpressCard to M.2 NVME key M Adapter from Aliexpress, Fits Thinkpads, anybody tried it? : r/thinkpad