ED2K, or eDonkey2000, is a peer-to-peer file sharing network that allows users to share and download files over the internet. It was developed in the early 2000s and is known for its ability to handle large files efficiently. Users connect to the network using various clients, which facilitate the search and transfer of files. The ED2K network operates using a unique hash system, which ensures that files are accurately identified and verified. This system helps users find specific files and ensures that they are downloading the correct content. ED2K remains popular for sharing a wide range of media, including music, videos, and software.