The WIZnet Ethernet HAT is a compact and versatile expansion board meticulously crafted to impart Ethernet connectivity to single-board computers, notably the Raspberry Pi. As a HAT (Hardware Attached on Top), it seamlessly attaches to the Pi’s 40-pin GPIO header. This feature-rich HAT encompasses an Ethernet controller chip, RJ45 connector, and associated circuitry.

With support for both 10/100Mbps Ethernet speeds, the WIZnet Ethernet HAT employs the acclaimed W5500 chip. This chip offers a diverse array of functionalities, including a robust TCP/IP protocol stack, network configuration capabilities, and efficient data transfer. Furthermore, the HAT accommodates various network protocols such as TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE, making it a comprehensive solution for reliable and high-speed Ethernet connectivity.