Hikvision 4-channel CCTV DVR H.265 5MP AcuSense DVR with H.265+ video compression. Product Details: Connectivity Technology: Coaxial Compatible Devices: Camera Brand: Hikvision Memory Storage Capacity: 10 TB Hard Disk Size: 10 TB Number of Channels: 4 4-channel DVR with one HDD and one AcuSense unit. Provides detailed information with face detection. Reduces false alarms by classifying human and vehicle targets based on deep learning. H.265 Pro+ efficient compression technology. Encoding capacity up to 8 MP lite @ 15 fps, 5 MP @ 12 fps. 5 adaptive input signals (HDTVI/AHD/CVI/CVBS/IP). Up to 8 network cameras can be connected. _______________________________ Hikvision 8-channel CCTV DVR Product Details: Connectivity Technology: BNC Compatible Devices: Camera Product Dimensions: 31.5 Length x 24.2 Width x 4.5 Height cm Brand: Hikvision Memory Storage Capacity: 6000 GB Hard Disk Size: 10 TB Type: Surveillance DVRs Brand: Hikvision One 1U unit with H.265 technology. 8-channel DVR with one hard disk, 1U. Efficient H.265 Pro+ compression technology. Encoding capability up to 1080p at 15 fps. 5 adaptive input signals (HDTVI/AHD/CVI/CVBS/IP). Up to 12 network cameras can be connected.