his device is likely a Samsara Vehicle Gateway, a platform used for fleet management and real-time vehicle/driver data capture. It captures real-time vehicle and driver data to improve fleet efficiency and safety. The gateway features high-speed 4G LTE cellular connectivity and an integrated WiFi hotspot. It is compatible with various accessories like dash cameras and wireless sensors. The device uses high-speed CAN protocols to interact with vehicle diagnostics. Asking $40 o b o also opento trades