Description: Micro SD Card with Adapter --- This device allows you to place the micro SD into the SD card, and use it in any SD card reader or SD media port on a computer, just like normal SD card (✿◠‿◠) Specifications: Product Type: Micro SD Card with Adapter Package Include: 1* 512GB Micro SD Card with Adapter 512GB=approximately 476GB-488GB Please Note:(✿◠‿◠) ① memory card speed is greatly affected by card reader, adapter, USB port etc. Please don't use cheap card reader to test memory card, low quality card reader will slow down card speed. ② Up to 15MB/s read speed; write speed is 10MB/s. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. ③ Please note: No matter what brand of memory card you use, please check the file save path and format of the device before use, otherwise you will not find your files in the memory card. Secondly, we don't recommend using the memory card uninterruptedly for a long time. Although the memory card is high temperature resistant, the continuous high temperature will damage the chip of the memory card and easily lead to data loss. ④ Our Store offers genuine memory card. Please feel free to contact us if you any issue about the memrory card and our service.Backed by 30-day refund and 12 months warranty.