SIM Card Compatibility: By inserting your telphone's SIM card into this card reader and using the included software, you can read, edit and backup your telephone directories and text messages. Leisurely sort, batch and modify your phone records from the comfort of your home PC or laptop. Easy Plug & Play Installation: Your data is accessed and used just like a floppy drive, or any other removable media drive. Just plug your memory card into the 51-in-1 reader, and it's recognized as a drive letter on Windows PCs or as an icon on Macintosh desktops. Then, moving files back and forth is a simple and familiar click and drag operation. Rapid Data Transfer: Transfers speeds up to 900kbps lets you move files 40 times faster than through a serial port. Perfect for people on the go: Small and compact, this card reader/writer is ideal for people who travel. Removable USB cable lets you install and un-install from your PC to notebook in seconds.