The go-to choice for exFAT support

Our commercial-grade file system implementation, Microsoft exFAT by Tuxera, adds external storage support for USB drives and SD™ memory cards larger than 32 GB to any device. The leading OEMs, ODMs, car makers, and Tier-1 suppliers choose Microsoft exFAT by Tuxera for fast, seamless data transfers in the latest consumer electronics and smart cars.

Why choose Microsoft exFAT by Tuxera

A must-have for exFAT storage support

Microsoft exFAT by Tuxera brings plug-and-play support for high-capacity flash storage including USB drives, external HDD/SSD, and all types of SD memory cards including SD™, SDHC™, SDXC™, microSD™, microSDHC™, and microSDXC™.

Maximum data transfer speeds

With Microsoft exFAT by Tuxera, you get the maximum I/O throughput out of any device. Plus, our software reliably handles simultaneous recording, viewing, and uploading of several ultra-HD streams – even in embedded environments with limited resources.

Optimized exFAT for premium user experience

Our storage software is optimized for the environment it’s embedded in. That means device users get a premium experience with reliable data storage, longer memory card lifetime, improved responsiveness when accessing stored content, and more available CPU to run their favorite apps.

Extensive design flexibility

Customized exFAT solution for any environment

Microsoft exFAT by Tuxera is a high-performance Linux® kernel module. We precision-tune it for the best performance on any platform, whether it’s Android™, Linux®, Chrome OS™, Firefox OS™, Tizen®, or proprietary RTOS deployments.

Supports all exFAT specifications

Our commercial exFAT solution is based on Microsoft® and SD Association specifications. Tuxera is a board member of the SD Association, and we’re also the main driver behind SDXC adoption, an international standard for high-capacity SD memory cards.

Easy Microsoft exFAT patent licensing

Tuxera has been a Microsoft partner since 2009 – and their first file system partner. We’re also a part of the Microsoft exFAT licensing program. With our special arrangement with Microsoft, you can purchase our proprietary exFAT file system implementation, already covered by a full Microsoft exFAT patent license. This means:

  • Hassle-free, licensed software
  • Faster time to market
  • Fully legal exFAT
  • Smart bundle pricing

See Microsoft file system partners

All Tuxera file system
implementations feature

Our cloud-based autobuild system ensures up-to-date, immediate software integration and delivery. Plus, our engineers are on call to help you through every stage of your product’s lifetime, including full integration support.

Our full implementation package comes with a built-to-spec, ready-to-run kernel module, all the file system and benchmarking tools you need, intensive device testing, our patented fail-safe technology, and full-service support.

Errors can cause data loss – or worse – damage device hardware. Tuxera file systems go beyond other alternatives to bring you volume check and repair tools that ensure file system consistency, fix corrupted volumes, and recover lost files.

All the software we build goes through extensive testing. We have our own state-of-the-art device testing lab where we test for interoperability, reliability, functionality, and performance.

Everything’s stored safe and sound. With Tuxera’s patented fail-safe technology, videos, pictures, and other files are saved during unexpected power losses or if the external storage is suddenly removed.

What our customers say about us

Technical data and resources

Operating systems

Android, Linux, Chrome OS, Firefox OS, Tizen, and ports available for QNX and other popular RTOSes.

Standard conformance

Conforms to SD Association (SDA) specifications.

Supported architectures

ARM, ARM64, Intel x86/x86_64 or compatible, MIPS, MIPS64, PowerPC, SH4, and more.

Storage hardware

Support for all flash-based storage types such as SD cards, eSD, CF cards, SSD, USB-connected storages, SATA, eSATA, FireWare, and eMMC.

When to use Microsoft exFAT by Tuxera

Microsoft exFAT by Tuxera is suitable for any device or system that requires support for memory cards larger than 32 GB, or file sizes greater than 4 GB.

Mobile devices

IVI, infotainment, and digital cluster

Automotive infotainment
(IVI) systems

Consumer electronics

How we helped customers with Microsoft exFAT by Tuxera


For software evaluations, pricing quotes, or more technical info for Microsoft exFAT by Tuxera, get in touch with us.

Pricing and evaluations

*Microsoft and exFAT are the registered trademarks of Microsoft in the U.S and other jurisdictions. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries. Tizen is a registered trademark of The Linux Foundation. Firefox OS is a trademark of Mozilla. Android and Chrome OS are trademarks of Google LLC. SD, microSD, and microSDXC are trademarks of SD Association.