The Ethernet W5100 Shield for Arduino provides Ethernet connectivity and includes a Micro SD card slot. It enables Arduino projects to connect to networks and facilitates data logging using the SD card slot. Ideal for IoT and network-enabled applications.TECHNICAL SPECIFICATIONType: Expansion ShieldChip: W5100 Ethernet ControllerFunctionality: Adds Ethernet connectivity to ArduinoFeatures: Micro SD card slot, TCP/IP supportCompatibility: Works with Arduino boardsApplications: IoT, web servers, network-enabled projects