SPECO DV4X1TB is a 4-channel HD-TVI Digital Video Recorder with EZ Wizards - for ease of use and setup. This 4-channel DVR supports up to 4MP @ 15fps over coax (HD-TVI), supports up to 2MP @ 30fps over coax (HD-TVI). It is backward compatible with all analog cameras. UTC function allows for zoom/focus and OSD control over coax as well as H.264 video compression.