Here you will find secondary cameras and video cables that are designed to work in conjunction with an existing forward-facing BlackVue or Thinkware dashcam system. The cameras on this page may be for rear-facing (pointing behind your vehicle) or for inside-facing (pointing inside the vehicle). Please note: these secondary cameras do not operate on their own! They must be connected to a BlackVue or Thinkware camera in order to record video. For BlackVue, these cameras are direct replacement units for the secondary cameras that originally come with the two-channel systems, for example the DR750X-2CH or DR900X-2CH-IR. For Thinkware, these cameras are add-ons (or replacements), meaning they can be added to an existing U1000, Q800 or F800 Pro front-facing camera. Some of the U1000, Q800 or F800 Pro do not include a secondary camera by default, so you use one of these cameras to turn them in to 2-channel systems. Certain levels of knowledge or experience may be required in order to safely and properly install these cameras. If in doubt, please consult a professional! If you need any additional information or guidance, please don't hesitate to contact us. We always give our best effort to respond to inquiries within 1 business day.