Review on 🔌 iWiner 4-in-1 USB C to SD Card Reader - Thunderbolt 3 Compatible for MacBook Pro/Air, iMac, iPad Pro, Android - Supports TF/SD/Micro SD/SDXC/SDHC/MMC/RS-MMC/Micro SDXC by Heather Wood

This is a serious product that does what it is supposed to do. It worked fine with my Windows PC. As soon as the memory card is inserted, the internal indicator lights up blue and the PC recognizes the card as external memory. Data transfer seems fast, although I haven't been able to measure it accurately. I use it to read microSD cards from my action camera and my DSLR and it works great in both cases. My only concern is that the description mentions a spring loaded mechanism and I'm not sure if that's correct. In my experience you insert the card and push it in until there is no more room, and take it out by grabbing the card and pulling it out, not pushing but pushing the card out like a real feather does. loaded memory card slot. All in all, this is a good basic card reader for your PC or Mac that gets the job done.