Got one of the sd to cf adaptors to put a 128GBP sd card into my mini cause cf cards are insanely expensive here in Aus, and not many places ship those here.
Works fine capacity wise, but the transfer speed and battery life took a major hit. Dropped from about 20 hours to a bit over 6. And 15mb/s to 7. Looks like the adaptor is sucking way too much juice. Time to look for a cf card I reckon.