Part of Hikvision's 'TVI4.0' series of digital video recorders, the HIK-7204HUHI-K2 is a 4 channel DVR that has been designed to support up to 5MP TVI cameras at 12 frames per second over coxial cable. Offering compatibility with multiple video formats ranging from standard definition analogue, 2MP AHD, 2MP HD-CVI, 5MP HD-TVI and up to two 6MP IP, this DVR supports H.265/H.265+ intelligent video compression technology which dramatically reduces bandwidth and storage requirements by up to 50%. Additionally, this machine provides 4 BNC input interfaces and is capable of providing 4K(UHD) video outputs via HDMI. Other benefits of TVI 4.0 include: The absence of video delay in live viewing, bi-directional signaling, and long video transmission range of up to 800m over coaxial cable. All of this adds up to an incredible breakthrough in the evolution of analogue video transmission.