Expand your digital horizons and secure your critical files with our collection of high-performance SD and microSD storage cards. Engineered for relentless reliability and lightning-fast file transfers, these student- and campus-vetted memory cards unlock seamless, high-density media storage for DSLR cameras, mobile devices, multimedia learning labs, and creative production suites alike, ensuring your assignments, video projects, and portfolio assets are permanently safeguarded.
Flash Memory Speed Class & Format Identification Guide
Card Indicator Code
Technical Class / Format
Capacity & Speed Limits
Ideal Academic & Creative Use-Case
SDHC / microSDHC
High Capacity Format
4GB to 32GB FAT32 File System
Maximum compatibility for older hardware, introductory campus text files, legacy point-and-shoot cameras, and basic audio recorders.
SDXC / microSDXC
Extended Capacity Format
64GB to 2TB exFAT File System
The modern standard for large files. Required for high-density media storage, long 4K video capture sessions, and expanding tablet space.
"10" inside a Circle
Class 10 Speed Rating
10 MB/s sustained write
Standard Full HD (1080p) video recording, everyday photography bursts, and basic student document backups.
"1" inside a "U" / V10
UHS Speed Class 1 / Video Class 10
10 MB/s bus-accelerated
Smooth high-definition video streaming, introductory multimedia tracking, and rapid buffer clearing for entry-level DSLRs.
"3" inside a "U" / V30
UHS Speed Class 3 / Video Class 30
30 MB/s minimum write
The 4K Baseline. Critical requirement for recording continuous, glitch-free 4K Ultra HD video and high-speed action photography.
V60 / V90 Markers
Advanced Video Speed Class
60 MB/s to 90 MB/s write
Professional cinema labs. Engineered to stream high-frame-rate 4K, uncompressed RAW video, and full 8K master projects without frame-drops.
A1 / A2 Designation
Application Performance Class
High IOPS Execution
Optimized for smartphones, tablets, and school Chromebook expansion slots. Drastically speeds up application loading and mobile data tasks.
SanDisk 32 GB SDXC - SDSDB-032G-A46 $31.72 /
SanDisk Extreme 32 GB UHS-I microSD - SDSQXVF-032G-AN6MA
SanDisk MAX ENDURANCE 64GB microSD Card
IOGEAR SDXC Support - GFR204SD $10.27 /
