GD508 is a Smart OBD Dongle, with its powerful processing capabilities, which has plenty of interface such as USB, mini-HDMI, external TF, OBD II (support CAN BUS reading), and built-in Wi-Fi, Bluetooth, motion sensor and standalone GNSS, enable the device extensibility to become more strength. The device can be integrated the customized application and used in many scenes such as fleet management, passenger coach, etc.