4-CH 1080pLite 1U H.265 eSSD DVR Powered by eSSD technology Built-in 512 GB eSSD (480 GB available) The device can store about 4 weeks videos for 4-ch analog cameras (default parameters), this estimation is for reference only. Scene-adaptive bitrate control video compression Up to 1080p Lite@30 fps encoding capability Low power consumption Audio via coaxial cable