... function supported9.Easy backup methods: USB devices,remote network and client software backup10.Alarm triggering screen tips,buzzer,PTZ preset, ... -working HDD hibernationg,HDD faulty alarm,Raid function12.Powerful network software:built-in web server,multi-DVR client &SMS Networking ... year warranty, And we sure the product will be free from maintenance within warranty period. Faster delivery: Within 3 ...