Supersonic High Speed Mini SD Memory Card 256GB Class 10 Micro TF flash usb pen drive card 32GB 64GB 128GB for Smartphone

Main Features:

● Class 10, high-quality crystal, durable, waterproof, and temperature resistant

● Read speed up to 100MB/s, Write speed up to 80MB/s

Capacity Information:

32GB ≈ 28GB-30GB

64GB ≈ 58GB-60GB

128GB ≈ 115GB-119GB

256GB ≈ 230GB-238GB

Steps to Verify Capacity and Speed of the Memory Card:

1. Use a quality USB 3.0 card reader to verify the memory card using H2testw on a PC. A genuine memory card should pass the H2testw without any errors.

2. Avoid using cheap card readers to test the Micro SD card, as the speed may be reduced by low-quality card readers.

3. The speed of the Micro SD memory card is significantly affected by the card reader, chosen capacity, USB port, etc. Low-quality devices will noticeably slow down the card speed (1MB = 1000KB).

We assure you that we only sell 100% original Supersonic Micro SD/TF cards!

Warm Tips:

How to verify the Capacity and Speed of the memory card?

1). Please use quality USB 3.0 card reader to verify.

2). Please don't use cheap card reader to test Micro SD card, speed of Micro SD card will be reduced by low quality card reader.

3). Micro SD memory card speed is greatly affected by card reader and the capacity you choose , USB port ect. Low quality device will 100% slow down card speed.