The Realtek RTL8152 is a USB 2.0 to RJ45 Ethernet controller chip that enables devices to connect to wired Ethernet networks through a USB port. This low-cost solution is commonly used in compact devices such as laptops, tablets, and mini-PCs, which lack built-in Ethernet ports. The chip supports 10/100 Mbps Ethernet and uses a low-power design to minimize power consumption, making it ideal for portable devices. Additionally, the RTL8152 is equipped with advanced power management features such as Wake-on-LAN, allowing devices to be remotely powered on from a sleep or standby state. The chip is widely used due to its low cost, compatibility with various operating systems, and power efficiency.