If you have an older analog security system and are interested in upgrading to an IP surveillance system; there is a way to do so gradually. With a hybrid DVR (Digital Video Recorder) you can still use your analog security cameras, while at the same time slowly upgrade and add on higher definition IP surveillance cameras.
The GEN IV G4-WD1 is a great hybrid NVR option for those looking to upgrade their analog surveillance system with IP cameras. This network video recorder comes with options for a dual 4 channel, 8 channel, or 16 channel system; meaning 8, 16, or 32 security camera possibilities in total.
Features of the G4-WD1 hybrid digital video recorder include H.264 video compression, smartphone support, HDMI and VGA output, and so much more. Additionally this hybrid NVR comes with options to install and expand HDD (hard drive) size up to a capacity of 32TB, thus allowing vast amounts of video storage.