StarTech.com 2-port 10Gbps USB C PCIe Card Adapter - USB 3.2 Gen 2 Type-C PCI Express Expansion Add-On Card - Windows, macOS, Linux - USB C PCI Express card w/ Multiple INs
MicroU2E USB to ExpressCard 34|54 Host Adapter, Synchrotech
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
2 Port SuperSpeed USB 3.0 (macOS Native) ExpressCard|34 Adapter – local338
USB 2.0 Male to Express Card 34mm Slot ExpressCard Adapter Reader DC 5V for Laptop Computer PC with LED - Newegg.com
Best Buy: Patriot Memory 2-Port USB 3.0 ExpressCard/34 Adapter PCUSB3EXP
54mm Express Card Expresscard to 2 Port USB 3.0 Adapter for Laptop NEC Chip | eBay
StarTech.com PCI Express to PCI Adapter Card - PCI Express to PCI Adapter - PEX1PCI1 - Serial Adapters - CDW.com
Flush Mount ExpressCard eSATA Controller - SATA Controller Cards | Add-on Cards & Peripherals | StarTech.com
ExpressCard Adapter for CF (PCI-e interface) - 45MB/sec
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
Amazon.com: JMT 2 Dual Ports USB 3.0 HUB Express Card ExpressCard 54mm Hidden Adapter Converter USB3.0 for PCMCIA Laptop PC : Electronics
USB for ExpressCard 34/54 Adapter Cable
USB 3.0 PCI-E Card, ORICO PCI-E 7 USB 3.0 Ports Controller Card Adapter Add