Compatible with smartphones, tablets, cameras, GoPro/action cameras, laptops, desktop computers, DSLRs, drones, Nintendo Switch/other portable consoles and much more Each Micro SD card has passed H2testw, we have test MicroSD card one by one before packing it, of course we also test other performances like water proof, shock proof, x-ray proof, temperature proof Micro SD card has obtained FCC, CE, ROSH certificates, just more stable Easy to use and easier to transfer data from device to deviceColor: Black Manufacturer: Cloudisk Model Number: TF-Black-1 Package Quantity: 1 Part Number: CDTF-Black-1 Size: 1GBWarm Tips: Cloudisk offers 100% genuine memory card with 1 year warrantyMicro SD card speed is greatly affected by card reader, adapter, USB port etc. Low quality device will 100% slow down card speed. Sometimes the printings on actual Micro SD card is Not 100% the same as pictures, but the performance is absolutely same & guaranteed. QA: Full Capacity Guaranteed for All Capacities, 1 Year Replacement Warranty, 7 Days Money Back Guarantee! Package Includes: 1 x Micro SD Card About capacity: 128GBytes = 128,000,000,000 Bytes = 125,000,000K Bytes = 122,068M Bytes = 119.20GB64GB=approximately 58GB-60GB32GB=approximately 28GB-30GB16GB=approximately 14GB-15GB8GB=approximately 6 GB- 7GB4GB=approximately 3.6GB-3.9GB1GB=approximately 0.89GB-0.95GB 128MB (Small capacity)=approximately 119MB-125MBThis is calculation difference between manufacturer and our PC, please Google 'Memory card capacity' to know more. Micro SD Features: 8GB/16GB/32GB/64GB/128GB Class 10- speed2GB/4GB Class 6- speed128MB/256MB/512MB/1GB Class 4- speedOriginal high quality flash memoryManufactured in Taiwan Dear buyer,If you have any question, please feel free to let us know, thanks^_^