• H.264 ,H.264+& Dual-stream video compression • Support  HD-TVI, IPC,AHD and analog cameras with adaptive access • Support Cloud storage(One Drive, Google Drive or Drop Box) • Simultaneous HDMI/VGA output at up to 1920 × 1080 resolution for DS-7204HUHI-F2/N and 4K (3840 × 2160) resolution for HDMI output of DS-7208/7216HUHI-F2/N • Long transmission distance over coax cable • Up  to 4/8-ch synchronous playback at 1080p resolution • playback at up to 256X speed.