SecuriCDS DD1000A by Advenica is a data diode with optical unidirectional data flow for physical separation in one direction. It offers high performance in a compact stand-alone package that can be mounted in a single 1U 19” rack system. SecuriCDS DD1000A provides a powerful solution for efficient and secure single direction data transfer between security domains. It ensures confidentiality for classified networks and integrity for Industrial Control Systems (ICS). It operates on Ethernet Layer 2 with full Gigabit Ethernet wire speed, automatically transferring all network data from the upstream to the downstream network regardless of the overlaying network protocol. SecuriCDS DD1000A uses unidirectional network protocols, such as UDP, to operate effectively. It is a hardware-only device with no software installed, using optical separation for unidirectional security, ensuring it cannot be misconfigured. It is approved in Sweden for data transfer between networks of different security levels up to and including the level of HEMLIG/TOP SECRET.