HD-TVI (Turbo analogue) DVRs are designed to work in conjunction with cameras which also utilise the HD-TVI technology (HD over coax) whilst also being backwards compatible with analogue cameras. A choice of storage options are available in all models.
Most are now multi format compatible so support AHD, CVI and older TVL analogue signals also and allow for an IP camera or two to be added on top (via your existing LAN/router network).
