SanDisk Ultra A2 Micro SD Card 32GB 64GB 128GB 256GB TF Flash
SanDisk Ultra A2 Micro SD Card 32GB 64GB 128GB 256GB TF Flash
SanDisk Ultra A2 Micro SD Card – High-Speed TF Flash Storage
Upgrade your devices with the SanDisk Ultra A2 microSDXC card, engineered for fast, reliable storage across smartphones, tablets, cameras, dashcams, drones, and more. Available in 32GB, 64GB, 128GB, and 256GB capacities, this Class 10, UHS-I U3, V30-rated card delivers the speed and durability you need for demanding tasks like 4K video recording, app performance, and large file transfers.
Made in Mainland China.
Key Features
- A2 App Performance Class: Optimized for running Android apps directly from the card with faster load times and smoother performance.
- UHS-I U3 / V30 Rated: Supports sustained video recording speeds, ideal for 4K UHD footage on cameras, drones, and action cams.
- Class 10 Speed: High-speed data transfers at up to 150x read speed for quick file access and saving.
- CE & FCC Certified: Meets international safety and quality standards for peace of mind.
- Wide Compatibility: Works with smartphones, tablets, laptops, dashcams, security cameras, digital cameras, speakers, robots, UAVs, and digital storage devices.
- microSDXC Format: Compact TF/Micro SD form factor that fits standard microSD slots.
Available Capacities
| Labeled Capacity | Usable Capacity (approx.) |
|---|---|
| 32GB | 28GB – 30GB |
| 64GB | 58GB – 60GB |
| 128GB | 115GB – 119GB |
| 256GB | 230GB – 238GB |
| 512GB | 460GB – 476GB |
Note: Usable capacity is slightly less than labeled capacity due to industry-standard formatting conventions used by storage device manufacturers.
Technical Specifications
- Brand: SanDisk
- Type: TF / Micro SD (microSDXC)
- Application Performance Class: A2
- Speed Class: Class 10 (C10)
- UHS Level: U3
- Video Speed Class: V30
- Read/Write Speed: 150x
- Certification: CE, FCC
- High-Concern Chemical: None
Tips for Best Performance
- Use a quality card reader and verify your card with H2testw on PC — a genuine card will pass with no errors.
- Avoid using low-quality or cheap card readers, as they can significantly reduce the measured read/write speed of your Micro SD card.
- Card speed is influenced by the card reader quality, USB port version, and selected capacity. Always use a reliable, high-speed card reader for accurate results.
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Frequently Asked Questions
Q: What devices is the SanDisk Ultra A2 Micro SD Card compatible with?
A: The SanDisk Ultra A2 microSD card is compatible with a wide range of devices including Android smartphones, tablets, laptops, dashcams, action cameras, digital cameras, drones (UAVs), security monitoring systems, smart speakers, and other digital devices with a standard microSD or TF card slot.
Q: What does the A2 application performance class mean?
A: The A2 rating means the card meets a higher standard for random read and write speeds, making it optimized for running mobile apps directly from the card — ideal for Android smartphones and tablets that support adoptable storage.
Q: Why does my 128GB card show less than 128GB of usable space?
A: This is normal across all flash storage products. Storage manufacturers measure capacity using 1GB = 1,000,000,000 bytes, while your device OS calculates using 1GB = 1,073,741,824 bytes, resulting in a slight difference. A 128GB card will show approximately 115GB–119GB of usable space on your device.
Q: How can I verify the capacity and speed of my Micro SD card?
A: You can verify your SanDisk microSD card's capacity and speed using the free H2testw tool on a Windows PC paired with a quality card reader. A genuine card will complete the test with no errors. Avoid using low-quality card readers as they can report inaccurate speeds.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.