Exclusive SAFY9 Compatibility – This hardwire kit is designed and engineered exclusively for the SAFY9 dash cam. It is not compatible with BlackVue dash cams. Stable 5V Power for Your Dash Cam – Safely converts your vehicle’s 12V-30V battery power to a stable 5V DC output, providing the correct and constant power required for the SAFY9 dash cam to operate reliably.