just received this today and sent back another one I bought here (rocketek) which got too hot after simply formatting and copying a file with about 1.6GB of data. I popped my PNY 32GB MicroSD card into this thing, copied the image from it, formatted it, then wrote the image back, and while it got a bit warm, it wasn't nearly as hot as the other one. While writing the image back to the SD card, I saw that the write speed was over 90MB/s and I thought I should take a screenshot. I'm not sure if it's an adapter or an SD card or a combination, but I'm very happy with it. When I took the screenshot the speed had dropped to 83.4 MB/s and when the image was ready after 7 minutes it was around 72 MB/s. Adapter Card-UHS-I, U3 - up to 90MB/s (P-SDU32U390EX-GE)
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