64GB Team ExpressCard SSD (MLC 34/Interface) with USB cable
Mac Pro Ultra PCI Express 2.0 Card | 480GB SSD SATA3 | MacMemory.com
Testing a cheap ExpressCard to NVMe SSD adapter on my ThinkPad T430 :: ./techtipsy — Herman's blog
64GB Wintec FileMate SolidGO ExpressCard 34 SSD
Lexar rolls out 4GB, 8GB, and 16GB ExpressCard SSDs | Engadget
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
Dual M.2 NGFF SSD PCI Express Card Adapter to Desktop PCIe M-Key NVME B-Key SATA | eBay
Express Card Expresscard 34mm Slot to M.2 Nvme NGFF Key M SSD Adapter | eBay