SanDisk Ultra microSDXC
The SanDisk Ultra 256GB microSDXC serves as a high-density storage solution designed for Android-based smartphones, tablets, and various industrial IoT host devices. This flash memory module utilizes the Ultra High Speed (UHS-I) bus architecture to deliver sequential read speeds reaching 100MB/s. Therefore, it significantly reduces data transfer latency when offloading high-resolution assets to a workstation. The Class 10 video rating ensures that the card maintains the necessary write throughput for consistent Full HD video capture without frame drops. Furthermore, the 256GB capacity provides extensive overhead for large application installations and expansive media libraries.
Key Features
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UHS-I Interface Performance
The integration of UHS-I technology allows for burst read speeds up to 100MB/s for efficient file management. -
Environmental Resilience
- Waterproof construction tested under IPX7 conditions for up to 72 hours.
- Temperature-proof operation ranging from -25°C to 85°C.
- X-ray proofing compliant with ISO7816-1 standards for airport security safety.
- Shock-resistant design capable of withstanding drops and vibrations.
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Class 10 Video Standard
This specification guarantees a minimum sustained write speed of 10MB/s, supporting standard 1080p video recording cycles.
Specifications
| Feature | Specification |
|---|---|
| Storage Capacity | 256 GB |
| Bus Interface | UHS-I |
| Speed Class | Class 10 |
| Sequential Read | Up to 100MB/s |
| Form Factor | microSDXC |
What’s in the Box
- 1 x SanDisk Ultra 256GB microSDXC UHS-I Card (SDSQUNR-256G-GN3MN)
Why Choose SanDisk Ultra
- High-density NAND flash architecture provides reliable long-term data retention for critical mobile assets.
- Compatibility with the SanDisk Memory Zone app enables automated file management and backup on Android devices.
- Rigorous testing protocols ensure the card maintains data integrity even in extreme thermal or mechanical conditions.
- Optimized controller firmware balances power consumption with high-speed data throughput for mobile battery efficiency.







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