The 4593A-2 is a hardened network switch designed for use in mission-critical environments, such as industrial networks and military installations. It is built to withstand harsh environments, including extreme temperatures, high levels of moisture and vibration, and is UL-certified to UL-60950-1 and UL-2900-2-2 standards. The 4593A-2 provides two 10 Gigabit Ethernet ports, two 100/1000Base-T Ethernet ports, and an additional four 10/100/1000Base-T Ethernet ports, and supports IPv6 protocol. It also comes with an integrated redundancy system, an auto-sensing power supply, and hot-swappable parts. The 4593A-2 offers remote access and monitoring, as well as advanced security measures, such as password security and Secure Socket Layer (SSL) support.