Step into the next generation of high-speed storage with the SanDisk microSD™ Express 256GB card, engineered for creators, gamers, and tech enthusiasts who demand unmatched speed, performance, and reliability. Featuring blazing-fast transfer rates of up to 880MB/s, this microSD™ card revolutionizes how you capture, store, and transfer your content.
Whether you’re shooting 5.3K video, transferring large RAW images, or playing demanding games, the SDSQXFN-256G-GN4NN delivers peak performance with future-ready express bus support. Built tough for any environment, this card is designed to be waterproof, temperature-proof, and shock-proof—ensuring your data is always protected, wherever your creativity takes you.
🛠️ Key Features:
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⚡ Up to 880MB/s Read Speeds
 Transfer a 2-hour HD video in under 3.5 seconds (with SanDisk PRO-READER SD Express Dual Card, sold separately) -
🎥 Supports Up to 5.3K Video Recording
 Perfect for high-resolution video capture and professional-grade content creation -
📸 Ideal for 10MP+ RAW Image Capture
 Achieve faster burst and sustained shooting than traditional SD UHS-II cards -
🕹️ Optimized for Gamers & Creators
 Delivers the performance needed for modern mobile gaming and high-speed media editing -
đź’Ş Built for Harsh Conditions
 Waterproof, shock-proof, and temperature-proof for ultimate reliability in any environment -
đź’˝ Massive 256GB Capacity
 Store hours of HD video, thousands of high-res images, and large applications with ease -
The SanDisk microSD™ Express 256GB (SDSQXFN-256G-GN4NN) is more than just storage—it’s a performance powerhouse. Built for speed and engineered for endurance, it’s the ideal choice for content creators, gamers, and mobile professionals who need fast, reliable access to their data. Upgrade your workflow with the future of microSD™ technology.
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 Card2 (sold separately) – up to 4.4 times faster than our fastest microSD™ UHS-I cards.10 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 a SD UHS-II card.3 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 our basic portable SSD.5 SanDisk microSD™ Express cards work with current microSD™ UHS-I and UHS-II devices, supporting up to 5.3K video6 and 10MP RAW image capture. SanDisk ThermAdapt™ helps keep your devices from overheating with a specially designed enclosure and an adaptive thermal controller. SanDisk microSD™ Express technology readies you—the next generation of creators and explorers—for the future of superspeed devices.
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 cards with up to 880MB/s2 transfer speeds.
Massive Time-Saver
Transfer a 2-hour HD movie in less than 3.5seconds2Â and save up to 2.8 minutes transferring 60 minutes of 4K UHD video6Â shot at 30 fps when paired with the SanDisk PRO-READER SD Express Dual Card (sold separately).11
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.7
Trust us with your content
Experience reliable performance and peace of mind with a lifetime limited warranty.9
Reliable File Recovery
Relax knowing that accidentally deleted files can be recovered by activating the two-year RescuePRO® Deluxe file recovery service.8
Exceptional Capture
A video-ready card that captures brilliant 5.3K and 4K video, plus slow-motion Full HD footage.6
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Specifications
- PCIe NVMe
- UHS-I
- 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
- Devices that include a microSDXC™ slot, including Android™ smartphones and tablets, action cams, drones, handheld gaming devices, and laptops.
- Devices that include microSD™ Express, microSD™ UHS-I, and microSD™ UHS-II slots.
- Performs at microSD™ UHS-I speeds when used with microSD™ UHS-I and microSD™ UHS-II devices.
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