RTL81688111

RTL81688111 is not a widely recognized official model designation from Realtek. It appears to be a concatenation of two Realtek PCI Express Gigabit Ethernet controller families, the RTL8168 and the RTL8111. The combined form is sometimes encountered in documentation or vendor listings, but it does not correspond to a distinct Realtek part number in their public product catalog. The two chips, RTL8168 and RTL8111, constitute the core of what is commonly referred to as the RTL8168/8111 family.

The RTL8168 and RTL8111 are PCI Express-based Gigabit Ethernet controllers that integrate the media access controller (MAC), the physical layer (PHY), and the PCIe interface in a single device. They support 10/100/1000 Mbps operation and are designed for use in desktops, laptops, and embedded systems. Features commonly associated with this family include support for jumbo frames, flow control, and Wake-on-LAN in various configurations, with exact capabilities depending on the specific refurbished or board design.

Driver support is broad and varies by operating system. In Linux, the RTL8111/RTL8168 often uses the r8169 driver included in most kernels, while the vendor provides a dedicated r8168 driver that may be required for certain kernel versions or hardware variants. Windows drivers are provided by Realtek and are available through Windows Update or Realtek’s official website. Compatibility is generally strong across modern distributions and hardware, though some vendor-specific boards may require manual driver selection or DKMS installation on Linux.

If the intended device is a specific motherboard or NIC model labeled as RTL81688111, additional details from the vendor or vendor-provided specifications would help identify exact hardware and driver requirements. See also Realtek RTL8168 and Realtek RTL8111 for related components.