The USB Data Cable provides the ability to connect your Samsung phone to your computer allowing your Samsung phone to become an external modem. Use your phone to dial up to the internet for online access, email etc. ** Compatible Samsung Phones : J700, i640, SPH-m520 (Qwest) , SPH-a513 (Helio) , SGH-t639 , SGH-t409 , SCH-u700 , SGH-a117 , SPH-m305 DM-s105 , SPH-m300 , SPH-m510 , SGH-t729 , SGH-a517 , SGH-t539 , SGH-t429 , SCH-U470, SPH-i325 Ace, SCH-R400, miCoach, Solid, i780, Armani P520, SCH-R210 Spex / SCH-R430 MyShot / SCH-U706 Muse / SGH-U900 Soul / SGH-F490 / SCH-U940 Glyde / SGH-A827 Access / SPH-M310 Slash / SGH-A227 / Tocco F480 / F400 / SPH-Z400 / SPH-M800 Instinct / SGH-T229 *** MUST READ - Requires third-party software (not included). *** Cable only, software and driver is not included