Dahua Ultra, Pro, and Lite Series network recorders are tailored to fit different applications. Ultra Series recorders offer the best performance and highest quality. Pro Series devices are perfect for mid-large size businesses and projects which require a balance between performance and budget. Lite Series recorders are designed for optimum cost performance with strict Dahua quality standards. Dahua network recorders are equipped with various video channel capacities and physical sizes to cater to various use cases. Up to 256CH/unit with 4U size is suitable for applications with high recording requirements but without additional IP storage to on save costs, such as in schools, casino, building complexes, etc. 4CH/unit small box recorders are typically used in applications at home or small businesses like retail shops.