Realtek Rtl8139 Driver 810x Family Pci-e Gigabit Windows 10 Jun 2026

This refers to the newer RTL8111 or RTL8168 families. These chips support speeds up to 1000 Mbps (1 Gbps) and connect via the faster PCI-Express slot. Why Do These Names Appear Together?

Are you currently getting an (like Code 10 or Code 43) in Device Manager? What is your current Windows 10 build version ? Share public link

To fix your driver issue, you must first understand that the "RTL8139" and the "RTL810x/8111/8168" family are completely different hardware generations. They cannot use the same driver. Realtek RTL8139 (The Fast Ethernet Era) 10/100 Mbps (Fast Ethernet). Interface: Legacy PCI (not PCI Express/PCI-E). Age: Released in the late 1990s and early 2000s.

Navigate to > Network Interface Controllers > PCI Express .

Installing an older ethernet controller on a modern operating system isn't always seamless. Here's how to overcome the most common hurdles. realtek rtl8139 driver 810x family pci-e gigabit windows 10

: Features updated drivers (up to 2019 versions) compatible with Windows 10/11.

Scenario A: You Have a True Legacy RTL8139 / 810X Card (100 Mbps)

Locate the download package labeled . Download the .zip file, extract it, and run setup.exe . Follow the on-screen prompts and restart your machine. 5. Troubleshooting Disconnections and Slow Speeds

In Device Manager, right-click your Realtek adapter and select Properties . Go to the Power Management tab. Uncheck the box that says "Allow the computer to turn off this device to save power." Next, go to the Advanced tab, locate Green Ethernet or Energy Efficient Ethernet , and set it to Disabled . Issue C: Speed Capped at 10 Mbps instead of 100 Mbps This refers to the newer RTL8111 or RTL8168 families

Windows 10 has a vast database of drivers.

Before diving into the technical troubleshooting, it is crucial to understand the exact hardware you are dealing with. The keyword "Realtek RTL8139 driver 810x family pci-e gigabit windows 10" actually bridges two distinct generations of technology:

If your driver is installed but your network connection remains slow or drops under heavy loads, try modifying these advanced hardware settings. Fix Code 10 or Code 43 Errors

Windows 10 contains a massive database of older drivers that often apply automatically. Are you currently getting an (like Code 10

Originally introduced in the late 1990s, the RTL8139 was a 10/100 Mbps Fast Ethernet controller known for its low cost, widespread compatibility, and reliable performance under heavy load. Its PCI (Peripheral Component Interconnect) interface was standard for nearly a decade. Later, the 810x family evolved to support PCI Express (PCI-E) and Gigabit (1000 Mbps) speeds, while maintaining register-level compatibility with the original RTL8139. This backward compatibility is key: Windows treats many 810x devices as RTL8139-compatible, allowing a single driver to support both legacy and modern chips.

This typically happens if you try to force a Gigabit driver onto a standard 10/100 Mbps RTL8139 or 810X chip. Uninstall the driver completely, delete the driver software from the system, and install the specific Fast Ethernet driver variant instead.

10/100 Mbps (RTL810x) or 10/100/1000 Mbps (RTL8111/8168 Gigabit). Interface: PCI Express (PCI-E).