Description

The Realtek RTL8139D is a Fast Ethernet network interface card (NIC) that supports speeds of up to 100 Mbps. It’s a popular choice for older computer systems that need a reliable wired network connection. Here are some key points about the RTL8139D NIC:

1. Compatibility: The RTL8139D NIC is compatible with various operating systems, including Windows (Windows 98, ME, 2000, XP, Vista), Linux, and other Unix-like operating systems.
2. Speed: It supports both 10 Mbps and 100 Mbps Ethernet speeds, making it suitable for both older networks running at 10 Mbps and newer networks running at 100 Mbps.
3. Interface: It typically uses a PCI (Peripheral Component Interconnect) interface, which was standard for many desktop computers and some servers during its era.
4. Reliability: Known for its reliability and stable performance, the RTL8139D is capable of handling typical networking tasks effectively.
5. Drivers: Drivers for the RTL8139D NIC are widely available and are often included in the operating system’s driver database. However, for older operating systems or specific configurations, you may need to download and install drivers from Realtek’s website or the motherboard manufacturer’s website.
6. Usage: It’s suitable for home or small office environments where a wired Ethernet connection is needed and where Gigabit Ethernet speeds (1,000 Mbps) are not required.
7. Installation: Installing the RTL8139D NIC involves inserting it into an available PCI slot on the motherboard and then installing the necessary drivers. The installation process is straightforward for most users.

Overall, the Realtek RTL8139D NIC remains a reliable choice for connecting older systems to Ethernet networks at speeds up to 100 Mbps, offering stable performance and broad compatibility with various operating systems.