SanDisk SDSQXAO-256G-GN6MA Extreme 256GB MicroSD Card

The SanDisk Extreme 256GB microSDXC card is built for devices that demand fast, sustained write performance — particularly action cameras, drones, and Android smartphones. Its UHS Speed Class 3 and Video Speed Class 30 ratings guarantee a minimum sustained write speed of 30MB/s, the threshold required for reliable 4K UHD video capture. This makes it a dependable choice for recording high-resolution footage without the frame drops or buffering that can plague slower cards. The A1 Application Performance Class rating adds another dimension, certifying that the card meets minimum random I/O benchmarks so that Android apps stored on the card launch and run without sluggish delays.

At 256GB, the card provides substantial storage for extended shooting sessions — critical for action camera users who may not have convenient access to offload footage in the field. SanDisk has specifically earned GoPro's recommendation for this card across several HERO generations, lending extra confidence for that popular use case. The included downloadable offer for RescuePRO Deluxe data recovery software provides a practical safety net for accidental deletions. The SanDisk Memory Zone app rounds out the package, offering Android users tools to automatically manage and optimize storage across their device and card.