Had four of these Acekard 2 flashcarts for customers only one turned out to be good and that was using a patriot 4gb micro sdhc class 6, the other three that i used a kingston class 4 8gb micro sdhc with take about 3 minutes from start up to get to the menu but do eventually load n once loaded play fine. I wouldn't buy one for myself and have stopped buying them for my customers due to the long bootup times. Still i have also bought 4 DSTT and all turned out to be faulty booting up once and then freezing on start up screen 99% of the time or not booting up at all , Edge Card no problems works fine, R4VIII had 8 of these no problems great card even if it is allegedly a clone although cheat menu is in chinese but still the most reliable and best card i use only topped by the cyclods but not so much profit to be made as its nearly twice the price from my supplier with that one so its for good friends only.