Features: brand new and high quality With this Ethernet Shield, your do for board can be used to connect to internet. This for Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your for Online. It is compatible for Duemilanove (168 or 328), as well as (1280/2560) and can be accessed using the SD library. Fits all version of for Main board,2009, 1280, 2560. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. Specifications: Material: PCB Color: As the Picture Shows Net Weight: 40g/0.09lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Shield W5100 Network Expansion Board