SLLEA USB Y PC Charger+Data Cable Cord for Garmin GPS Nuvi 2597 LM/T 2457 LM/T 66 LM/T Brand New, High Quality USB 2.0 Data/Lead and Power Supply Cable (Non-OEM). Connectors: one end with USB mini B male, the other end with 2 USB A male---one for strengthening power supply and one for data transfer. 2-in-1 feature: this cable connects your external hard drive/external HDD to a USB-ready notebook/laptop or USB hub for powering the device and transferring data. This is especially important for HDD with big capacity, since without the additional power, the HDD may malfunction or lead to connection frozen.Oxygen Free Copper Core with Environmental-friendly Recyclable Plastic. Twisted-Pair construction to ensure high-speed, error-free data transfer Heavy-duty cable.light and easy to carry. It is a good replacement of or spare part for the original data and power supply cable of the external drive.