https://www.newegg.com/p/2S7-09RT-000T8
Buy JVFYI EP-024 ExpressCard Express Card to PCMCIA PC converter Card Adapter 34mm to 54mm with fast shipping and top-rated customer service. Newegg shopping...
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https://www.macfixit.com.au/collections/expansion-interfaces/products/sonnet-echo-pro-expresscard-34-thunderbolt-adapter-5-0-gb-s-expresscard-2-0-interface
5.0 Gb/s ExpressCard 2.0 interface. Enables you to use ExpressCard/34 adapters with Thunderbolt technology-equipped computers. 1 Year Sonnet warranty. Buy Now!
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