What is the difference between 'U1' and 'U3' on SD cards and other storage devices like thumb drives? - Quora
![SanDisk-tarjeta SD de 32GB, 64GB, 128GB, 256GB, 120 MB/s, U1, 200 MB/s, U3, V30, 4K, para Canon, Nikon, SLR, grabación de vídeo 4K SanDisk-tarjeta SD de 32GB, 64GB, 128GB, 256GB, 120 MB/s, U1, 200 MB/s, U3, V30, 4K, para Canon, Nikon, SLR, grabación de vídeo 4K](https://ae01.alicdn.com/kf/S5a0bad5a1dd142a7b2f32fd1e7e0731ci/SanDisk-tarjeta-SD-de-32GB-64GB-128GB-256GB-120-MB-s-U1-200-MB-s-U3.jpg)
SanDisk-tarjeta SD de 32GB, 64GB, 128GB, 256GB, 120 MB/s, U1, 200 MB/s, U3, V30, 4K, para Canon, Nikon, SLR, grabación de vídeo 4K
![Which Micro SD Card? Sandisk Ultra (A1 U1) vs Amazon Basics (A2 U3) vs Integral (A1 U3)? : r/SteamDeck Which Micro SD Card? Sandisk Ultra (A1 U1) vs Amazon Basics (A2 U3) vs Integral (A1 U3)? : r/SteamDeck](https://preview.redd.it/which-micro-sd-card-sandisk-ultra-a1-u1-vs-amazon-basics-a2-v0-n51q46w4biy91.jpg?auto=webp&s=d50e8083ab0ab956b45e5ba7214e2f6ee0165b43)
Which Micro SD Card? Sandisk Ultra (A1 U1) vs Amazon Basics (A2 U3) vs Integral (A1 U3)? : r/SteamDeck
![What is 100% Original Faster 90 Mbps Class 10 U1 U3 Micro Memory SD TF Card Memory Cards with Adapter 1GB 2GB 4GB 8-256 GB What is 100% Original Faster 90 Mbps Class 10 U1 U3 Micro Memory SD TF Card Memory Cards with Adapter 1GB 2GB 4GB 8-256 GB](https://image.made-in-china.com/202f0j00nqkbuVjESyoN/100-Original-Faster-90-Mbps-Class-10-U1-U3-Micro-Memory-SD-TF-Card-Memory-Cards-with-Adapter-1GB-2GB-4GB-8-256-GB.jpg)
What is 100% Original Faster 90 Mbps Class 10 U1 U3 Micro Memory SD TF Card Memory Cards with Adapter 1GB 2GB 4GB 8-256 GB
![SanDisk-tarjeta de memoria para cámara Nintendo Switch, micro SD, Trans Flash, 100% Original, C10, U1, U3, 4K, HD - AliExpress SanDisk-tarjeta de memoria para cámara Nintendo Switch, micro SD, Trans Flash, 100% Original, C10, U1, U3, 4K, HD - AliExpress](https://ae01.alicdn.com/kf/S697d3088de994fb9a43c294d5a11e292G.jpg_640x640Q90.jpg_.webp)
SanDisk-tarjeta de memoria para cámara Nintendo Switch, micro SD, Trans Flash, 100% Original, C10, U1, U3, 4K, HD - AliExpress
![SDHC SDXC, V10, V30, Clase 10 o U3: guía rápida para entender mejor las diferencias en memorias SD - Cultura Geek SDHC SDXC, V10, V30, Clase 10 o U3: guía rápida para entender mejor las diferencias en memorias SD - Cultura Geek](https://culturageek.com.ar/wp-content/uploads/2020/05/tarjetas-de-memoria-SD-2-www.culturageek.com_.ar_.jpg)