The RTL8111H-CG / RTL8111HS-CG IC from Realtek is a 10/100/1000 Mbps Ethernet controller that combines a triple-speed IEEE 802.3 compatible Media Access Controller (MAC) with an integrated 10/100/1000M PHY transceiver in a single chip.
It provides high-speed wired network connectivity for computers, motherboards, and embedded systems. The controller supports Auto-Negotiation, Wake-on-LAN (WoL), and advanced power management, making it efficient and reliable for modern Gigabit Ethernet designs.
Compact and easy to integrate, this IC is commonly used in desktop PCs, laptops, and network-enabled devices to provide fast and stable LAN connections.