The Cathexis NVR500 is an Intel Celeron 847 based, standalone hardware server with Ubuntu LTS OS. It is a cost effective entry- level IP network based server with a recording bitrate of up to 200 Mbps. Hard drive storage capacity is a maximum of 6TB with the option of a 120GB solid state drive for the OS and CathexisVision LITE and CORE. It is suitable for small, single server sites up to 9 cameras @12 fps and for recording only. Live viewing is not recommended with this NVR. All Cathexis hardware is supported with a standard 3 year guarantee.