Sandisk 256GB microSD Express Memory Card (880MB/s read & 650MB/s write speeds)

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. Now with a PCIe® Gen 3-NVMe™ interface, the new card delivers performance comparable to our mainstream portable SSD. Up to 4.4 times faster than our fastest microSD™ UHS-I cards, they enable exponentially faster camera roll offloads and 2-hour HD movie (2GB) download transfers in less than 3.3 seconds while using SanDisk PRO-READER SD Express Dual Card (sold separately). Works with Nintendo Switch™ 2 to deliver super quick load times and an ultra-smooth, immersive gaming experience. Create next-level immersive content with a card that supports up to 5.3K video capture today and up to 8K video in possible new devices. SanDisk ThermAdapt™ technology helps keep heat generated by high speeds within reliable operating limits with a specially designed enclosure and an adaptive thermal controller. Backwards compatible with microSD™ UHS-I devices, SanDisk microSD™ Express technology readies you—the next generation of creators and explorers—for the future of superspeed devices.

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.

Product Features

• Ready for future superspeed products with a PCIe® NVMe™ interface and UHS-I speeds
• Up to 4.4 times faster read speeds than our fastest microSD™ UHS-I cards
• Waterproof, temperature-proof, humidity-proof, drop-proof, shock-proof, magnetic-proof, x-ray proof, and wear-out proof