The SD Card is a highly secure stamp-sized flash memory card. It is Perfectly designed for next-generation mobile phones and portable devices. The SD Card can be used in a variety of digital products. It has 1GB storage capacity and high transfer rate for fast copy or download. You can have a huge amount of storage waiting for you in a convenient, easy-to-carry size and format. It provides selectable mechanical write protect switch on the exterior card casing. It supports Built-in Error Correcting Code (ECC) to detect and correct transfer errors. At the same time ,it has 100% compatiblity with all SD-compliant devices. So you can use it without any extra trouble.