The Symantec Blue Coat NIC-S500-4xGigE-PT Quad Port Gigabit PCIe Bypass Network Adapter is a high-quality network modem combo card with four RJ-45 external interfaces. It is designed for PCI Express compatibility and is perfect for expanding network connectivity in your computer system. With the reliable Symantec brand behind it, this network adapter ensures seamless performance and security for your network connections. Ideal for businesses or individuals looking to enhance their networking capabilities, this model offers efficient and versatile connectivity options.