Speed: Offers read speeds up to 150MB/s and write speeds up to 150MB/s, with A1-rated performance for faster app loading. Capacity: Available in various capacities, from small to large, including up to 512GB, to store more photos and Full HD videos.
Specifications
Capacities: They are widely available in various capacities, with the current maximum for the Ultra line being 1.5TB. Common capacities also include 32GB, 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB.
Speed: They feature read speeds up to 140MB/s (or up to 150MB/s for some models) and are rated Class 10 and UHS Speed Class 1 (U1) for Full HD (1080p) video recording.
App Performance: Most modern SanDisk Ultra cards have an A1 rating, which means they are optimized for faster app launch and performance on Android devices.
Durability: They are built to be shockproof, temperature-proof, waterproof, and X-ray-proof.
General microSD Capacity Standards
The physical "microSD" card itself adheres to capacity standards set by the SD Association, which define the maximum potential storage:
microSDHC (High Capacity): Supports capacities from more than 2GB up to 32GB.
microSDXC (eXtended Capacity): Supports capacities from more than 32GB up to a theoretical maximum of 2TB. The first 2TB card became widely available in early 2024.
microSDUC (Ultra Capacity): This newer standard supports capacities from more than 2TB up to a massive 128TB, but cards using this standard are not yet widely available to consumers.
