I bought two Samsung Evo 64gb micro SDXC cards from a seller called karl3924 on eBay in the UK for use on holiday in my go pro cameras, however on reviewing the footage i found the cards did not record anything at all. Now i am back home i have run a scan on them (using h2testw) to find out that only 4gb is useable and the cards are a fake. I am lucky enough that i has other cards to re capture what i missed first time round.
hope this helps on the crackdown on fake goods