30-Pin to USB Cable for iPhone 4/4S, IPAD 2/3/4, for Apple IOS Serial / USB Cable for Kernel Debugging, supporting change the SN serial number on NAND Flash, iPhone 4 4S IPAD 2/3/4 engineering line is the specialized USB cable.
engineering debugging cable change IMEI SN number for repairing Apple baseband IC
Used to communicate over serial to run tests and write to the SysCfg (for serial definitions, etc)
Data transfer very fast
Used for factory programming, are stable and durable
Supported models are not complete, only supported iPhone 4/4S, IPAD 2/3/4.