SanDisk SDSQXFN-256G-GN4NN microSD Express - 256 GB UHS I (U3) 880 MB/s Read 650 MB/s Write

Next-level speed for next-level experiences.

Unleash your creative potential and dive into new experiences with SanDisk® microSD™ Express, the next-gen microSD™ card for those who refuse to settle. Offload your camera roll in record time and transfer a 2-hour HD movie download in less than 3.5 seconds while using SanDisk® PRO-READER SD Express Dual Card (sold separately)-up to 4.4 times faster than our fastest microSD™ UHS-I cards.

Start gaming faster and explore virtual worlds that appear more realistic than ever. On top of saving time, create next-level immersive content with a card that supports faster burst and sustained recording speeds than an SD UHS-II card.2 With the addition of a PCIe® Gen 3 NVMe™ interface, the microSD™ Express card represents a massive step forward in the evolution of the microSD™ format with performance comparable to a basic portable SSD.3 SanDisk® microSD™ Express cards work with current microSD™ UHS-I and UHS-II devices, supporting up to 5.3K video4 and 10MP RAW image capture. SanDisk® microSD™ Express technology readies you-the next generation of creators and explorers-for the future of superspeed devices.

HIGHLIGHTS | Ready For Tomorrow

Ready for future superspeed products with a PCIe® - NVMe™ interface, and performs at UHS-I speeds with microSD™ UHS-I and UHS-II devices.

Exponentially Faster Performance

Up to 4.4 times faster read speeds than our fastest microSD™ UHS-I cards10 with up to 880MB/s transfer speeds.

Massive Time Saver

Transfer 2-hour HD movie in less than 3.5 seconds1 and save up to 2.8 minutes transferring 60 minutes of 4K UHD video4 shot at 30 fps when paired with the SanDisk® PRO-READER SD Express Dual Card (sold separately).

Durability You Can Count On

Cards are waterproof, temperature-proof, humidity-proof, drop-proof, shock-proof, magnetic-proof, x-ray proof, and wear-out proof.

Trust Us With Your Content

Experience reliable performance and peace of mind with a lifetime limited warranty.

Reliable File Recovery

Relax knowing that accidentally deleted files can be recovered by activating the two-year RescuePRO® Deluxe file recovery service.

Exceptional Capture

A video-ready card that captures brilliant 5.3K and 4K video, plus slow-motion Full HD footage.

SanDisk® ThermAdapt™

SanDisk® ThermAdapt™ helps keep devices from overheating with a specially designed enclosure and controller that uses dynamic adaptive thermal management.