Has anyone tried this product? It costs ~$80

It says:

Performance:
Read up to 18MB/s, Write up to 8MB/s (8GB~32GB)

Whereas the SDHC card offers a minimum write speed of 6MB/s.

Welcome to Transcend Website - ExpressCard/34 Solid State Disk (http://www.transcendusa.com/Products/ModDetail.asp?ModNo=162&LangNo=0&Func1No=1&Func2No=171)

Already been discussed.

http://www.dvinfo.net/conf/sony-xdcam-ex-cinealta/141572-new-transcend-express-cards-32-gb.html