This IBM Netfinity Gigabit Ethernet Adapter is a high-quality, vintage computing accessory that you won't want to miss out on. With its reliable performance and advanced features, this adapter is perfect for networking and computing enthusiasts alike. It's compatible with PCI-X and comes with the 19K4419 and 19K4409 models, as well as the 200027C03 RevA.Whether you're looking to expand your vintage computing collection or need a reliable and efficient Ethernet adapter, this IBM Netfinity Gigabit Ethernet Adapter is the perfect choice. Don't miss out on this opportunity to own a piece of computing history.