128GB Micro SD Card Class 10 V30 A2 U3 High-Speed TF Card

amzwn Ultra High-Speed Micro SD / TF Memory Card

Expand your device's storage instantly with the amzwn Class 10 V30 A2 U3 Micro SD Card, available in capacities from 32GB up to 256GB. Engineered for blazing-fast read and write speeds, this TF card is compatible with smartphones, tablets, cameras, dashcams, drones (UAVs), action cameras, laptops, MP3/MP4 players, smart speakers, and more — all with true plug-and-play convenience (no software required).

Made in Mainland China.

Key Features

• Speed Class: C10 / U3 / V30 / A2 — supports 4K video recording and high-performance apps
• Read Speed: Up to 40–129 MB/s; Write Speed: 30–80 MB/s (requires USB 3.0+ interface for speed testing)
• Wide Compatibility: Mobile phones, tablets, cameras, dashcams, drones, notebooks, digital devices, robots, file storage, and more
• Plug & Play: No driver or software installation needed
• H2testw Verified: Supports H2testw testing — damaged area less than 4% (red areas are normal software compatibility indicators, not hardware defects)
• Operating Temperature: 0°C – 60°C | Storage Temperature: -20°C – 85°C

Available Capacities & Recommended Formats

• 32GB ≈ 27GB–31GB actual usable space — Format: FAT32
• 64GB ≈ 58GB–62GB actual usable space — Format: exFAT
• 128GB ≈ 95GB–122GB actual usable space — Format: exFAT
• 256GB ≈ 210GB–238GB actual usable space — Format: exFAT

About Displayed vs. Usable Capacity

Memory card manufacturers calculate capacity using decimal notation (1 GB = 1,000,000,000 bytes), while device operating systems use binary notation (1 GB = 1,073,741,824 bytes). As a result, your device may display slightly less storage than the labeled capacity — this is completely normal and not a product defect.

Important Compatibility Note

Before purchasing, please confirm that your device supports the capacity you intend to buy. If your device only supports cards up to a certain size (e.g. 4GB), inserting a higher-capacity card may prevent it from functioning — this is a device limitation, not a product quality issue.

What's in the Box

• 1 × Micro SD / TF Memory Card
• 1 × Retail Package

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Frequently Asked Questions

Q: What devices are compatible with this Micro SD / TF card?

A: This Class 10 V30 A2 U3 Micro SD card is compatible with a wide range of devices including smartphones, tablets, digital cameras, dashcams, drones (UAVs), laptops, MP3/MP4 players, smart speakers, robots, and other digital devices that support a standard Micro SD / TF card slot. Always verify your device supports the chosen capacity before purchasing.

Q: Why does my device show less storage than the card's labeled capacity?

A: This is a standard industry difference in how capacity is calculated. Manufacturers use decimal math (1 GB = 1,000,000,000 bytes), while device operating systems use binary math (1 GB = 1,073,741,824 bytes). The actual usable space will appear slightly lower — for example, a 128GB card will show approximately 95GB–122GB on your device. This is perfectly normal and not a defect.

Q: What format should I use when formatting this Micro SD card?

A: For 32GB cards, use FAT32 format. For 64GB, 128GB, and 256GB cards, use exFAT format. Using the correct file system ensures optimal performance and full compatibility with your device.

Q: Does this TF card support 4K video recording?

A: Yes! With a V30 Video Speed Class rating, this card delivers a minimum sustained write speed of 30 MB/s, making it fully capable of recording 4K video. For best performance verification, use a USB 3.0 or higher card reader when testing 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.