Supports 4CH & 1 SATA slotUp to 10TB capacity for each HDD• Supports AHDTVI/CVI/IP cameras up to 2MPSupports H.264/H.264+/H.265/H.265+Supports Smart Playback & AnalyticsSupports 2 extra IP ChannelSupports 3G/4G Wi-FiSupports Cloud storage/ Audio Input -1Ch

Supports 4CH & 1 SATA slotUp to 6TB capacity for each HDDSupports AHD/TVI/CVI/IP cameras up to 2MPSupports H.264/H.264+/H.265/H.265+- Supports Tamper & Video Loss DetectionSupports 2 extra IP Channel Supports 3G/4G Wi-FiSupports Cloud storage 

Supports 8 CH, 1SATA/Up to 10TB capacity for each HDDSupports AHDTVI/CVI/IPCameras/Supports/AHD/TVI/CVI Cameras upto2MPSupports/H.264+/H.264/H.265+/H.265Supports Smart Playback & AnalyticsSupports 3G/4G Wi-FiSupports Cloud StorageSupportAudio Input -1ch

Supports 8CH & 1 SATA slotSupports AHD/TVI/CVI/IP cameras up to 2MP  Supports H.264/H.264+/H.265/H.265+/- Supports Tamper & Video LossDetection-E29  Supports 8 cameras AHD/TVI/CVI/IP in total Supports3G/4G Wi-FiSupports Cloud storage

Supports 16 CH,1SATA Supports Up to 10TB capacity for each HDD/AHD/TVI/CVI/CVBSIP Cameras Supports/AHD/TVI/CVI upto 2MPSupports H.264+/H.264/H.265+/H.265SupportsSmart Playback & AnalyticsSupports 3G/4G Wi-FiSupports Google Cloud StorageSupport Video Quality Detection (VQD)

16ch 1080P Lite 2SATA/Up to 8TB capacity for each HDDAHD/TVI/CVI/CVBSIP Cameras /Supports/AHD/TVI/CVI upto 2MP/ H.264+/H.264Supports Smart/Playback & AnalyticsSupports 2 extra IP chSupports 3G/4G Wi-FiGoogle drive & Dropbox Cloud StorageAudio input -4Ch/ Two way Talk -1ch

8 CH, 1SATA/Up to 10TB capacity for each HDDSupports AHD/TVI/CVI/CVBS /IP Cameras Supports AHD/TVI Cameras upto 5MP, CVI upto 4MPSupports H.265+/H.265/H.264+/H.264Supports Smart Playback & AnalyticsSupportsextra IP chSupports 3G/4G Wi-FiGoogle drive & DropboxCloud Storage

16 CH, 1SATA/Up to 10TB capacity for each HDDSupports AHD/TVI/CVI/CVBS /IP Cameras Supports AHD/TVI Cameras upto 5MP, CVI upto 4MPSupports/H.265+/H.265/H.264+/H.264Supports Smart Playback &AnalyticsSupports 2 extra IP chSupports 3G/4G Wi-FiGoogle drive & Dropbox Cloud Storage