Asymmetrical broadband is a type of internet connection in which the download speed is significantly faster than the upload speed. In this type of connection, the available bandwidth is unequally distributed between the downstream and upstream channels. Asymmetrical broadband is commonly used for consumer internet connections, where users typically download more content than they upload, such as streaming video, browsing the web, or downloading files.

The asymmetrical nature of the connection allows for higher download speeds, which is more important for most users, while sacrificing some upload speed, which is typically used for activities such as video conferencing or uploading files to the internet. Asymmetrical broadband is different from symmetrical broadband, which provides equal download and upload speeds and is often used for business-grade internet connections or applications that require high upload speeds, such as video production or cloud computing.