MicroSD Card SanDisk 128GB UHS-I Express SDSQXFN-128G-GN4NN

SanDisk microSD Express delivers next-level speed for creators and explorers who need fast transfers and high-performance capture. With a PCIe Gen 3-NVMe interface, this microSD card reaches up to 880 MB/s read speeds and offers performance comparable to entry-level portable SSDs while remaining compatible with current microSD UHS-I and UHS-II devices. The card supports up to 5.3K video and 10MP RAW image capture, and incorporates SanDisk ThermAdapt to manage heat during intensive recording or transfer tasks.

Advantages

MicroSD Express provides dramatically higher read speeds—up to 4.4× faster than SanDisk’s fastest UHS-I microSD cards—reducing transfer times for large files and enabling faster app and game load times. It supports sustained burst and continuous recording speeds higher than SD UHS-II cards, offers broad device compatibility, and includes a durable enclosure designed to resist water, temperature extremes, humidity, drops, shocks, magnetic fields, X-rays and wear. A lifetime limited warranty and an optional two-year RescuePRO Deluxe file recovery service add data protection and recovery options.

Key specifications

• Interface: PCIe Gen 3 with NVMe (microSD Express); backward compatible with microSD UHS-I and UHS-II devices
• Maximum read speed: up to 880 MB/s
• Performance claim: up to 4.4× faster read speeds vs SanDisk fastest microSD UHS-I cards
• Video support: up to 5.3K and 4K video capture; Full HD slow-motion capable
• Image support: up to 10 MP RAW capture
• Durability: waterproof, temperature-proof, humidity-proof, drop-proof, shock-proof, magnetic-proof, x-ray proof, wear-out proof
• Thermal management: SanDisk ThermAdapt adaptive thermal controller
• Warranty and recovery: lifetime limited warranty; two-year RescuePRO Deluxe file recovery service available

How to use

Insert the SanDisk microSD Express card into a compatible microSD card slot or use a card reader such as the SanDisk PRO-READER SD Express Dual Card for maximum transfer speeds. For ordinary microSD UHS-I or UHS-II devices, the card will operate at UHS-I speeds. Use the card for high-resolution video recording, burst photography, rapid file transfers and portable storage. Monitor device temperature when performing sustained high-speed operations; ThermAdapt helps manage heat but proper ventilation is recommended for prolonged use at top speeds.

Recommendations

For fastest transfers and to realize the maximum speed benefits, pair this card with a PCIe-NVMe–capable reader such as the SanDisk PRO-READER SD Express Dual Card (sold separately). Choose a capacity that matches your recording and storage needs, and enable RescuePRO Deluxe if you want file recovery protection for accidental deletions.