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🚀 Speed meets portability — never miss a moment, never wait for a file.
The SanDisk MobileMate USB 3.0 microSD Card Reader delivers ultra-fast UHS-I transfer speeds up to 170 MB/s with USB 3.0 technology, enabling file transfers up to 10x faster than USB 2.0. Its compact, durable design (31x21x9 mm) ensures portability and ruggedness, compatible with multiple operating systems including Windows, macOS, Linux, iOS, and Android. Ideal for professionals handling 4K video and large data files, it comes with a 2-year limited warranty and enjoys high user satisfaction.






| ASIN | B07G5JV2B5 |
| Additional Features | High Speed USB 3.0 Transmission, Compact Design, Plug & Play |
| Best Sellers Rank | #10,020 in Computers ( See Top 100 in Computers ) #111 in Micro SD Memory Cards |
| Brand | SanDisk |
| Built-In Media | MobileMate USB 3.0 Reader |
| Color | black |
| Compatible Devices | Smartphone, Camera, Drone |
| Connectivity Technology | USB |
| Customer Reviews | 4.5 4.5 out of 5 stars (32,431) |
| Global Trade Identification Number | 00619659169039 |
| Hardware Interface | USB 3.0 |
| Item Dimensions L x W x H | 31L x 21W x 9H millimeters |
| Item Type Name | SanDisk MobileMate USB 3.0 microSD Card Reader - SDDR-B531-GN6NN |
| Item Weight | 2 g |
| Manufacturer | Western Digital Technologies Inc. |
| Media Type | Multiple file types |
| Mfr Part Number | SDDR-B531-GN6NN |
| Model Name | SDDR-B531-GN6NN |
| Model Number | SDDR-B531-GN6NN |
| Operating System | Windows, macOS, Linux, iOS, Android |
| Slot Count | 1 |
| UPC | 619659169039 |
| Unit Count | 1.0 Count |
| Warranty Description | 1-year limited |
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