Works great. Puppy ate cord last year. So im selling just the dvr head. Peraonal item. The Night Owl 4 Channel H.264 DVR with 500GB HD Model K-4500 is a wired surveillance unit designed for home use. It has four channels and four zones, with a maximum resolution of 1080p (FHD). The DVR is black in color and can be powered by either a wall plug-in or a hardwired connection. The storage capacity is 500GB. This product is the DVR head only.