Profile: Add-On Computer, Inc. specializes in supplying digital flash storage and memory upgrade products. MicroSD cards includes full-size SD card adapter with write protection switch. It includes mobile phones and PDA's. The USB 2.0 Mobile SwingDrive™ is used for storing and transferring MP3's, digital photos, games, spreadsheets, documents, presentations or any personal files from the computer. The USB 2.0 interface storage capacities are available up to 16GB (gigabyte). It's Windows and Mac OS® compatible and does not require any drivers. This unique design has a protective aluminum cap that swings away from the USB connector for easy accessibility. Memory mobile storage secure digital cards are about the size of a postage stamp. Secure Digital™ cards are the storage technology for digital devices such as digital cameras, MP3 players, PDA's, digital voice recorders and cellular phones.