Expresscard 34 54 mm To 2 ports PCI e x16 slots adapter Laptop Express card connect PCI express Sound Card Network graphics card|expresscard 34|expresscard 54 34laptop express slot - AliExpress
Amazon.com: JMT 2 Dual Ports USB 3.0 HUB Express Card ExpressCard 54mm Hidden Adapter Converter USB3.0 for PCMCIA Laptop PC : Electronics
Expresscard to PCMCIA / CardBus Adapter
STCECUSB3S254F - StarTech.com 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP Support - Add two flushmount USB 3.0 ports to your ExpressCard-enabled laptop - 2 Port Flush
2 Dual Port USB 3.0 HUB Express Card ExpressCard Hidden 54mm Adapter for Laptop - Walmart.com