16CH H.264 Network DVR DVR,NVR,HVR all in one USB 2.0 for Mouse and File Backup / Upgrade Support 3pcs SATA HDD and 1pcs e-SA 16CH H.264 Network DVR,16ch real time D1 reacording and playback,HDMI output,1080P HDMI video output 3G,WIFI network support