SanDisk microSD Express Card - 128GB - Up To 880MB/s Read Speed and 480MB/s Write

Next-generation storage performance is delivered with the SanDisk microSD Express Card 128GB, designed to support advanced gaming, high-resolution video capture, and fast data transfers across modern devices. A powerful PCIe Gen 3 NVMe interface is integrated to provide speeds comparable to mainstream portable SSD solutions, enabling significantly faster file movement and improved workflow efficiency. Camera roll offloads and HD movie downloads can be completed in seconds when paired with a compatible reader, making this card ideal for creators and gamers who demand responsive performance.

Future-ready compatibility is ensured through support for both microSD Express and microSD UHS-I interfaces, allowing use with today’s devices while preparing users for upcoming superspeed hardware. Immersive content creation is supported with recording capabilities up to 5.3K today and readiness for possible 8K capture in future devices. Thermal stability is maintained using SanDisk ThermAdapt technology, which helps regulate operating temperatures during intensive tasks such as gaming sessions, high-resolution video recording, and rapid transfers. Reliable durability protection further ensures dependable performance across demanding environments.

Key Features:

PCIe Gen 3 NVMe Performance
Advanced PCIe Gen 3 NVMe architecture is implemented to deliver storage speeds comparable to portable SSD performance, enabling faster transfers and smoother workflows.

Optimized for Handheld Gaming Devices
Faster read speeds are supported for improved loading times and smoother gameplay experiences, especially when used with compatible handheld gaming systems such as Nintendo Switch 2.

High-Resolution Content Creation Support
Capture of immersive content up to 5.3K resolution is supported today, with readiness for future devices capable of 8K recording.

Rapid File Transfers
Significant reductions in transfer times are achieved when used with compatible readers, enabling quick movement of large 4K videos and RAW image libraries.

Intelligent Thermal Control
SanDisk ThermAdapt technology is integrated to help maintain safe operating temperatures through adaptive thermal management.

Rugged Multi-Condition Durability
Protection against water, shock, temperature extremes, humidity, magnets, drops, X-rays, and wear is provided for dependable everyday and outdoor use.

Backward Compatibility Support
Operation with microSD Express, microSD UHS-I, and microSD UHS-II compatible devices is supported for flexible usage across multiple platforms.

Specifications:

Capacity
128GB

Form Factor
microSDXC™

Interface
PCIe NVMe
PCIe Gen 3

Dimensions (L x W x H)
0.59" x 0.43" x 0.04"

Warranty
Lifetime Limited Warranty

Weight
0.26gms

Model Number
SDSQXFN-128G-GN4NN

Operating Temperature
-13°F to 185°F

Non-Operating Temperature
-40°F to 185°F

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

In The Box
SanDisk microSD Express 128GB Front
SanDisk microSD™ Express Card

Compatibility
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.

Model Numbers
128GB: SDSQXFN-128G-GN4NN

Conclusion:
High-speed PCIe NVMe architecture, future-ready compatibility, and rugged durability protection are combined in this 128GB microSD Express card to support demanding gaming, professional-level content capture, and rapid data transfers across current and upcoming devices. Reliable thermal control and lifetime limited warranty coverage further strengthen its suitability for creators, explorers, and performance-focused users.