Gomadic USB Charging Data Coiled Cable for the Garmin nuvi 2757 / 2797 LMT Will charge and data sync with one unique TipExchange enabled cable Included TipExchange technology enables cable to be easily upgraded by simply switching the physical connector plug. Specific connection for the Garmin nuvi 2757 / 2797 LMT is included, with additional connectors for thousands of other devices available separately. No additional AC power required. Uses power from the USB port of the computer to charge the Garmin nuvi 2757 / 2797 LMT Specification: Cable length: (12 to 30 inches), Outer Shell Material: (Coiled PU), Internal Leads: 24AWG, TipExchange Connector Design (Garmin nuvi 2757 / 2797 LMT Specific) Coiled cable can stretch when you need it and pack compactly when not in use. Cable is 12 inches coiled length. however, can be stretched to over 30 inches. Cable tip, wiring and power configuration is designed to Garmin nuvi 2757 / 2797 LMT specification.