The DH100 series comes in 4 channel and 8 channel configurations and utilizes embedded Linux with H.264 compression while employing a similar user interface across the entire Digimerge Touch line-up. The Digimerge CMS-DH software is also common to the entire line-up of DH DVRs including the DH200 as well as the newly released 100, 200+,230 and 250 series.