
I have a SanDisk USB card reader that is at least 17 years old and later high speed memory cards are too complex for it. They are not recognized in Windows 10. With this UGREEN SD card reader and faster cards, there is no problem in Windows 10. I did a read/write test with a Micro SD HC-1 16GB card with 10 video files totaling 5GB. The writing speed was 70 MB and the reading speed was 92 MB. I mainly use SD cards for camera, phone, dash cam, not for data storage. The UGREEN SD card reader suits my needs quite well.

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