Amazon.com: MZHOU PCI-E to USB 3.0 PCI Express Card incl.1 USB C and 2 USB A Ports,Adding M.2 SATA III SSD Devices to a PC or Motherboard Using M.2 NVME to PCIe
2 Port SuperSpeed USB 3.0 (macOS Native) ExpressCard|34 Adapter – local338
Amazon.com: StarTech.com 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP - Dual Port Laptop ExpressCard USB 3 Controller (ECUSB3S254F) : Electronics
Testing a cheap ExpressCard to NVMe SSD adapter on my ThinkPad T430 :: ./techtipsy — Herman's blog
1x Flush Mount ExpressCard eSATA Adapter - SATA Controller Cards | StarTech.com