
This is an unnamed brand of SD cards, but don't let that put you off buying one if it suits your needs. I've used them and so far they work great with my phone and luckily they come with an adapter so I can read them on my laptop. As for the rated speeds, I haven't tested them exactly, but they seem to work fine on my phone when downloading files to it. I'd say they're not bad overall if you're looking for SD cards that are cheaper but still functional. (Picture of contents after opening the box)

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