The Realtek RTL8180L is an early 802.11b wireless LAN chipset designed for PCI-based network adapters. Operating in the 2.4 GHz band, it supports data rates of up to 11 Mbps and was widely used in desktop PCs during the early 2000s. The chipset integrates MAC and baseband processing, reducing overall system cost while maintaining stable wireless connectivity. The RTL8180L relies on an external RF module and supports WEP encryption for basic wireless security. It is compatible with legacy Windows operating systems, including Windows 98, ME, 2000, and XP, making it suitable for older or retro computing environments.