With our SD card, you can provide more storage for your mobile devices. This class 10 compatible card is also ideal for taking photos and recording and playing full HD videos. Play up to 80MB/s, write up to 10MB, load apps and videos faster, and transfer files faster and smoother.Our Micro SD cards offer extra storage capacity and Multi-Device features so you can focus on life. This High Speed Micro SD Class 10 TF memory card is designed for mobile phones, tablets, music players, cameras, PCs and other devices.Up to 80MB/, Class 10 is used for full HD video recording and playback, and also allows you to easily view, access and save files from mobile memory, saving you more time transferring data from the card to other devices.With regard to capacity:The HDD/flash vendor uses decimal arithmetic: 1MB=1000KB, 1G=1000MB Calculation, but the operating system uses binary arithmetic: 1MB=1024KB, 1GB=1024MB. Therefore, there are some differences between the display capacity and the rated capacity of the HDD/Flash memory product. However, this is permissible. Do not doubt its authenticity.16GB=Probably 15GB, 32GB=Probably 29GB, 40GB=Probably 37GB, 60GB=Probably 55GB, 80GB=Probably 74GB, 120GB=Probably 111GB, 160GB=Probably 149GB, 250GB=Probably 232GB, 320GB=Probably 298GB, 500GB=Probably 465GB, 640GB=Probably 595GB, 1TB=Probably 930GB.Note: Micro SD card speed is strongly influenced by card reader, adapter, USB port, etc. Low-quality devices can slow down the card.