The Vivotek ND8401 is a 16 channel network video recorder designed for sophisticated recording applications. This NVR features 4 x HDD Tray (Max. 16TB), 2 x Gigabit RJ45 Ethernet Ports and 6 x USB Ports yet still only measures 204 mm (W) x 330 mm (D) x 215 mm (H) meaning it has a lot to offer but is still compact for home or small business use. RAID 0/1/5/10 is supported with four HDDs, with an external eSATA port for additional expansion potential. The ND8401 supports VIVOTEK network cameras (7000 & 8000 Series), panoramic PTZ fisheye models (SF Series - are not included) and smart models (MD7560X - is not included). Please note that this product may be subject to a 14-day lead time to fetch it from the manufacturer. Vivotek ND8401 User Manual Vivotek ND8401 Installation Guide Learn More