BlueStar's ATM/POS professional DVR is designed for ATM booth, commercial ATM locations and POS machine surveillance with 4-channel live display and card number overlay for mul t iple protocols. The products support HDD failure alarm, main board failure alarm, motion detection, external sensors alarm, video loss alarm and anti-mask alarm. Features: * The DVR supports multiple backup modes such as USB2.0, e SATA and network for scheduled backup and local playback. * The powerful network software Bplayer and peripheral products can centralize the control of BlueStar DVRs series. * It also supports the four channels simultaneous playback.