The speed at which data is transmitted or transferred from one location to another, such as over a network or between devices on a computer. It is typically measured in bits per second (bps), bytes per second (Bps), megabytes per second (MBps), or gigabits per second (Gbps). Transfer rates apply to various types of data transmission, including internet speed (e.g., Mbps for network downloads/uploads), file transfers between storage devices, and data streaming. A higher transfer rate indicates faster data movement, which can affect performance in activities such as downloading files, streaming videos, or backing up data.