![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: ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write Amazon.com: ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write](https://m.media-amazon.com/images/I/71rBRh+jHhL.jpg)
Amazon.com: ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write
![Amazon.com: Silicon Power 1TB SDXC Micro SD Card Gaming Memory Card with Adapter Write Speed 80MB/s : Electronics Amazon.com: Silicon Power 1TB SDXC Micro SD Card Gaming Memory Card with Adapter Write Speed 80MB/s : Electronics](https://m.media-amazon.com/images/I/71WVVFe+kjL.jpg)
Amazon.com: Silicon Power 1TB SDXC Micro SD Card Gaming Memory Card with Adapter Write Speed 80MB/s : Electronics
![Silicon Power 256GB SDXC Micro SD Card Nintendo-Switch Memory Card with Adapter, Write Speed 80MB/s - Newegg.com Silicon Power 256GB SDXC Micro SD Card Nintendo-Switch Memory Card with Adapter, Write Speed 80MB/s - Newegg.com](https://c1.neweggimages.com/ProductImage/BDGPS2205260CRHXJA5.jpg)
Silicon Power 256GB SDXC Micro SD Card Nintendo-Switch Memory Card with Adapter, Write Speed 80MB/s - Newegg.com
![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/guides/cropped_images/000/003/421/medium640/sd2.jpeg?1631729837)
Markings: speed, size and class | Understanding microSD and SD cards: speeds, markings and more | Adafruit Learning System
![LINSAY New LINSAY High Speed Micro SD Card 128 GB V30 4K Ultra HD with Adapter in the Tablet Accessories department at Lowes.com LINSAY New LINSAY High Speed Micro SD Card 128 GB V30 4K Ultra HD with Adapter in the Tablet Accessories department at Lowes.com](https://mobileimages.lowes.com/productimages/b52ec694-2529-49c2-ae88-0f96b493180e/15660796.jpg)
LINSAY New LINSAY High Speed Micro SD Card 128 GB V30 4K Ultra HD with Adapter in the Tablet Accessories department at Lowes.com
![Amazon.com: ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write Amazon.com: ProGrade Digital microSD Memory Card - V60 microSD Card for DSLR and Action Cameras - High Speed Transfer of Files & Large Storage - Up to 250MB/s Read and 130MB/s Write](https://m.media-amazon.com/images/I/71XS7EeKCTL._AC_UF1000,1000_QL80_.jpg)