... for professional DVR with high performance and competitive price. H.264 compression algorithm ideal for standalone DVR. Realtime ... the best,VBR effectively)Recording ModeManual, schedule(Regular(Continuous), MD(Video detection, Motion detection, Camera blank, Video loss), ... SATA port, Max 2TB HDD supportedSpace OccupationAudio,28.8MB/H, Video,56~900MB/HHDD ManagementHard disk hibernation technology, ...