Kodak | KODAK Micro SD Card 16GB 32GB 64GB 128GB 256GB U3 V30 4K Full HD Micro TF Memory Microsd Card for Phone/security Camera/Dash Cam

About capacity:32GB=approximately 28GB-30GB64GB=approximately 58GB-60GB128GB=approximately 115GB-119GB256GB=approximately 230GB-238GBMain Features● Class 10, high quality crystal, durable, waterproof and temperature resistant● U3 Read speed up to 100MB/s, Write speed up to 80MB/sWarm 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,1MB=1000KB.