Description:1.Micro TF SD Card + SD adapter2.Plug and play (no software needed)3.High-speed read and write4.Applies to Cell Phones, Cameras, MP3/MP4 Player and More device5.Comes with Adapter to Bring to SD Card6.Operating Temperature -13 F to 185 F (-25 C to 85 C)7.Storage Temperature -40 F to 185 F (-40 C to 85 C)Warm Tips( 2.0USB reader Test Result) :4GB-Class 6-SDHC16GB/32GB-Class 10-SDHC64GB/128GB-Class 10-SDXCClass 6: Read speed around 15-20MB/S ,Write speed around 6-8MB/SClass10: Read speed around 15-30MB/S ,Write speed around 9-12MB/SThe Micro SD card speed is based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors.Micro SD card speed is greatly affected by card reader, adapter, USB port etc. Low quality device will 100% slow down card speed.Hardware Features:Original high quality flash memoryManufactured in TaiwanAssembled in ChinaAbout capacity:32GB=approximately 28.5GB-30GB64GB=approximately 58.5GB-60GB128GB=approximately 113GB-124GB256GB=approximately 230GB-238GBThis is calculation difference between manufacturer and our PC, just for you referencePackage :1 X Micro TF Card1 x free adapter1 x free retail packa