Compatible with USB 2.0/1.1 Support Micro SD (T-FLASH) and SIM card USB bus powered, no external power needed High performance in transfer rate LED indicator Suitable for those who have several SIM cards to backup and modify information Allow you to read, edit and backup telephone directory and SMS Information safekeeping, set, cancel and manage mobile PIN password System requirements: Windows 98/ME/2000/XP Size: 6.5 x 1.0 x 2.0 cm Color: black