SanDisk A1 Micro SD Card 32–256GB 100MB/s + Type-C Reader
SanDisk A1 Micro SD Card 32–256GB 100MB/s + Type-C Reader
SanDisk A1 Micro SD Card – High-Speed Storage for Every Device
Expand your storage instantly with the SanDisk A1 microSD Card, available in 32GB, 64GB, 128GB, and 256GB capacities. Rated at up to 100MB/s read speed, Class 10 / UHS-I / U1 / V10, this microSD card is built for fast, reliable performance across smartphones, tablets, laptops, action cameras, dashcams, drones (UAVs), smart speakers, monitoring systems, and more. The included Type-C card reader means you're ready to transfer files the moment your card arrives.
Made in Mainland China.
Key Features
- Multiple Capacities: Choose from 32GB, 64GB, 128GB, or 256GB to match your needs
- Up to 100MB/s Read Speed: Quickly load apps, transfer photos, and stream HD video
- A1 App Performance Class: Optimized for smooth app launches and consistent performance on mobile devices
- Class 10 / UHS-I / U1 / V10: Meets the highest standard for everyday recording and file storage
- microSDXC Compatible: Works with all microSD-compatible devices
- Type-C Card Reader Included: Plug-and-play connectivity with modern laptops and smartphones
- CE & FCC Certified: Meets international safety and compliance standards
- Broad Compatibility: Smartphones, tablets, notebooks, dashcams, cameras, drones, surveillance devices, robots, digital gadgets, and file storage
About Actual Capacity
Formatted capacity will appear slightly lower than labeled — this is normal for all flash storage due to industry-standard measurement differences:
- 32GB ≈ 28–30 GB usable
- 64GB ≈ 58–60 GB usable
- 128GB ≈ 115–119 GB usable
- 256GB ≈ 230–238 GB usable
- 512GB ≈ 460–476 GB usable
Technical Specifications
| Brand | SanDisk |
| Type | TF / Micro SD (microSDXC) |
| App Performance Class | A1 |
| Speed Class | Class 10 (C10) |
| UHS Level | UHS-I (U1) |
| Video Speed Class | V10 |
| Max Read Speed | Up to 100 MB/s |
| Card Reader | Type-C included |
| Certifications | CE, FCC |
| Origin | Made in Mainland China |
Tips for Verifying Capacity & Speed
- Use a quality card reader and verify with H2testw on PC — a genuine card will pass with no errors.
- Avoid low-quality card readers; they can artificially reduce measured read/write speeds.
- Card speed is also affected by your USB port version and the capacity selected. Always use a USB 3.0 or higher port for best results. (Note: 1 MB = 1,000 KB)
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Frequently Asked Questions
Q: Is this SanDisk Micro SD card compatible with my Android smartphone?
A: Yes. The SanDisk A1 microSD card is compatible with virtually all Android smartphones and tablets that feature a microSD card slot. The A1 Application Performance Class rating ensures smooth app performance and fast file access on mobile devices.
Q: What is the Type-C card reader included, and how does it work?
A: The included Type-C card reader plugs directly into any USB-C port — on modern laptops, tablets, or smartphones — allowing you to read and write to your microSD card without any additional adapters. Simply insert the card into the reader, plug into your device, and it will be recognized automatically.
Q: Why does my 128GB or 256GB card show less storage than expected?
A: This is completely normal. Storage manufacturers calculate capacity using 1 GB = 1,000,000,000 bytes, whereas your operating system uses 1 GB = 1,073,741,824 bytes. This means a 128GB card will display approximately 115–119 GB in your device, and a 256GB card will show approximately 230–238 GB. No storage is missing — it's simply a difference in measurement standards.
Q: What devices is the SanDisk A1 microSD card compatible with?
A: This microSD card is compatible with a wide range of devices including smartphones, tablets, laptops, dashcams, action cameras, surveillance/monitoring cameras, drones (UAVs), smart speakers, digital cameras, robots, and general file storage solutions. It fits any device with a standard microSD or TF card slot.
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.