High-speed data refers to a type of internet connection that allows for fast and efficient transfer of large amounts of data. This means that users can quickly download or upload files, stream videos without buffering, play online games with minimal lag, and perform other bandwidth-intensive tasks without experiencing slowdowns or delays. High-speed data is typically measured in terms of its speed, such as megabits per second (Mbps) or gigabits per second (Gbps), with higher numbers indicating faster connections. This type of internet service can be provided through various technologies, including cable modems, DSL lines, fiber-optic cables, and wireless networks.