Bests & Worsts Reviews from Amazon

These are a scam. What they do is take a low capacity micro sd card (like 2-4gb), then flash new system info onto the card so it reports that its 256gb. But if you run over that 2-4gb that the card really is, it starts writing to nothing and that info is then lost forever. DO NOT BUY. If it's not a big name brand and if it costs a lot less than the brand equivalent then its a scam, be very careful when buying random/no name brands of flash memory.