![Markings: speed, size and class | Understanding microSD and SD cards: speeds, markings and more | Adafruit Learning System Markings: speed, size and class | Understanding microSD and SD cards: speeds, markings and more | Adafruit Learning System](https://cdn-learn.adafruit.com/assets/assets/000/104/735/medium800/components_Screen_Shot_2021-09-17_at_3.07.46_PM.png?1631905789)
Markings: speed, size and class | Understanding microSD and SD cards: speeds, markings and more | Adafruit Learning System
![Amazon.com: KEXIN 3 Pack 32GB Micro SD Card Memory Card MicroSDHC UHS-I Memory Cards Class 10 High Speed Card, C10, U1, 32 GB 3 Pack : Electronics Amazon.com: KEXIN 3 Pack 32GB Micro SD Card Memory Card MicroSDHC UHS-I Memory Cards Class 10 High Speed Card, C10, U1, 32 GB 3 Pack : Electronics](https://m.media-amazon.com/images/I/51AGJKxiyWL.jpg)
Amazon.com: KEXIN 3 Pack 32GB Micro SD Card Memory Card MicroSDHC UHS-I Memory Cards Class 10 High Speed Card, C10, U1, 32 GB 3 Pack : Electronics
![Amazon.com: Kingston Digital 64 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDCX10/64GB) : Electronics Amazon.com: Kingston Digital 64 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDCX10/64GB) : Electronics](https://m.media-amazon.com/images/I/8142MXZW8ZL._AC_UF894,1000_QL80_.jpg)