A Gigabit Switch is a networking device that provides Gigabit Ethernet connectivity in a computer network. Gigabit switches offer higher bandwidth and faster data transfer speeds than traditional 100-megabit switches, and can transfer up to 1,000 megabits of data per second, which is equivalent to 1 billion bits or 1,000,000,000 bits per second. This makes Gigabit switches an important component in modern networks, especially in environments that require high bandwidth and low latency.