Micro SD Card 2GB–128GB Class 10 V30 A2 – Fast TF Flash
Micro SD Card 2GB–128GB Class 10 V30 A2 – Fast TF Flash
amzwn High-Speed Micro TF SD Card – Class 10, U3, V30, A2
Expand your storage effortlessly with the amzwn Micro TF SD Card. Available in capacities from 2GB all the way up to 128GB, this Class 10 flash memory card is engineered for fast, reliable performance across a wide range of devices — smartphones, tablets, cameras, dashcams, drones, speakers, and more. Made in Mainland China.
Why Choose This Micro SD Card?
- Multiple Speed Classes: Choose the right speed tier for your device — V30/U3/A2 for 4K recording, U1/V10 for 1080P, or C6/U1 for photo storage.
- Wide Compatibility: Works with mobile phones, tablets, laptops, dashcams, cameras, surveillance systems, speakers, digital devices, robots, and UAVs.
- Class 10 Performance: C10 rating ensures smooth, consistent data transfer for everyday use and demanding applications alike.
- 4K-Ready (V30 Variants): V30/U3/A2 cards support 4K video recording with write speeds of 30–80 MB/s and read speeds of 40–129 MB/s (tested via USB 3.0 interface).
- Application Performance Class A2: Optimized for running apps directly from the card, reducing load times on Android devices.
- Flexible Capacity Options: Select from 2GB, 4GB, 8GB, 16GB, 32GB, 64GB, or 128GB to match your storage needs and device compatibility.
Speed Class Guide
| Capacity | Speed Class | Best For |
|---|---|---|
| 2GB / 4GB | C6 / U1 | Photo storage |
| 8GB / 16GB | C10 / U1 / V10 | 1080P video recording |
| 32GB / 64GB / 128GB | C10 / U3 / V30 / A2 | 4K video, app performance |
About Displayed Capacity
Please note that displayed capacity on your device may appear slightly lower than the nominal capacity. This is normal — flash memory manufacturers use decimal calculations (1GB = 1000MB), while device operating systems use binary calculations (1GB = 1024MB). Approximate usable capacities are as follows:
- 2GB ≈ 1.5GB – 1.86GB
- 4GB ≈ 3.5GB – 3.75GB
- 8GB ≈ 7GB – 7.45GB
- 16GB ≈ 14GB – 14.9GB
- 32GB ≈ 28GB – 29GB
- 64GB ≈ 58GB – 59GB
- 128GB ≈ 95GB – 119GB
What's in the Box
- 1× Micro TF SD Memory Card (your chosen capacity)
- 1× Retail packaging
Important Notes
- Always check your device's maximum supported card capacity before purchasing — cards exceeding the device's supported range may not function correctly.
- V30 / U3 / A2 speeds require testing via a high-speed USB 3.0 interface for accurate results.
- No harmful chemicals — certified high-concern chemical free.
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Frequently Asked Questions
Q: What devices is this Micro SD card compatible with?
A: This Micro TF SD card is compatible with a wide range of devices including smartphones, tablets, laptops, dashcams, cameras, surveillance/monitoring systems, Bluetooth speakers, drones (UAVs), robots, and other digital devices that support Micro SD or TF card formats. Always verify your device's maximum supported capacity before purchase.
Q: What is the difference between the V30/U3/A2 and the U1/V10 versions?
A: The V30/U3/A2 variants (32GB–128GB) are designed for high-demand tasks such as 4K video recording and running apps directly from the card, offering write speeds of 30–80 MB/s and read speeds of 40–129 MB/s. The U1/V10 variants (8GB/16GB) are optimized for 1080P video, while the C6/U1 options (2GB/4GB) are ideal for photo storage on basic devices.
Q: Why does my device show less storage than the card's labeled capacity?
A: This is a standard industry difference. Flash memory manufacturers calculate capacity using the decimal system (1GB = 1000MB), while your device's operating system uses the binary system (1GB = 1024MB). This results in a slightly lower displayed capacity compared to the card's labeled size — this is completely normal and not a defect.
Q: Does this Micro SD card support 4K video recording?
A: Yes — the V30/U3/A2 variants (available in 32GB, 64GB, and 128GB) fully support 4K video recording. For the most accurate speed performance testing, use a USB 3.0 card reader or interface.
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.