SanDisk microSD Express Card – 256GB

Get Ready for Tomorrow
A PCIe® 3.1 NVMe™ interface and a standard microSD™ UHS-I interface make this card compatible with today’s devices and primed for future superspeed products.

Game-Ready Storage with Next-level Speeds
Take advantage of exponentially faster read speeds to jump into your games faster with a microSD™ card that works with Nintendo Switch™ 2 and a range of handheld gaming devices.

Exponentially Faster Performance
Up to 4.4 times faster read speeds than our fastest microSD™ UHS-I card that have adopted a version of SanDisk QuickFlow™ technology, microSD™ Express cards support speeds comparable to our mainstream portable SSD.

Massive Time-Saver
A microSD™ Express card reduces your wait time significantly. When paired with the SanDisk PRO-READER SD Express Dual Card (sold separately), you can transfer 60 minutes of 4K UHD video shot at 30 fps in just less than 70 seconds and 1,000 10MP RAW photos in less than a minute (51.7 seconds).

Durability you can count on
Adventure without worry knowing the microSD™ Express cards, like our standard microSD™ 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
SanDisk knows microSD™ Express inside and out. We helped initiate the standard and continue to drive its development to this day, just as we led development of the microSD™, microSD™ UHS-I, and microSD™ UHS-II card formats. We use proprietary Flash Management Techniques to produce highly stable memory. And we back the cards with a lifetime limited warranty.

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