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Markings: speed, size and class | Understanding microSD and SD cards: speeds, markings and more | Adafruit Learning System
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Card Reader USB 3.0, 7 in 1 Memory Card Reader, USB 3.0 (5Gps) High Speed CF/SD/TF/XD/MS/Micro SD Card Solt All in one Card Reader for Windows XP/Vista/Mac OS/Linux,etc1 : Amazon.sg: Electronics
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