The DS-7308HQI-K4 TurboHD 8-Channel 3MP DVR with No HDD from Hikvision enables you to record from and manage up to 8 cameras. This DVR offers full channel recording at up to 3MP resolution. It comes with no HDD preinstalled. Storage is expandable to four SATA HDDs, each with a maximum 8TB capacity, for a total of 32TB. A BNC interface supports HD-TVI and analog cameras. Additionally, IP cameras up to 4MP are supported. H.265+, H.265, H.264+, and H.264 video compression keep file sizes manageable while maintaining quality.