The Broadcom E-G021-04-2613(B) PCI-E Network Card 393477-001 393626-001 is a high-quality network card designed for computers that require a single port interface. With support for both PCI and PCI-E ports, this card is compatible with a wide range of systems. Its reliable performance and Broadcom brand ensure a seamless networking experience for users looking to enhance their computer's connectivity capabilities.