... motion detection, synchronously monitor.6. USB flash drive backup, DVD-RW drive backup, remote backup through network.7. Manual record, ... D1 preview resolution, SATA HDD supported, USB flash drive, DVD-RW drive, remote backup supported, mouse operation and IR controller ... D1 preview resolution, SATA HDD supported, USB flash drive, DVD-RW drive, remote backup supported, mouse operation and IR controller ...