Technical Communications Corporation's Cipher X 7211 is a Network Encryption Ethernet Network Security Device designed for global Ethernet networks. It offers scalable performance from 100 Mb/s to 1 Gb/s full duplex and integrates seamlessly into existing networks without degrading performance. The Cipher X 7211 utilizes hardware-based Layer 2, 3, and 4 encryption engines to encrypt and decrypt traffic at full wire speed. It provides secure data transmission over fiber, satellite, or microwave networks, supporting multicast applications like secure video conferencing. The device operates as a tunnel-less Layer 2, 3, or 4 solution, allowing integration with existing or new networks without requiring architecture changes. It features a Security Policy Manager that sets criteria for encrypting, blocking, or passing traffic.