Cat5e is a type of Ethernet cable used for networking and internet connections. It stands for "Category 5 enhanced" and is designed to support data transmission speeds of up to 1 Gbps (gigabit per second) over distances of up to 100 meters. This makes it suitable for most home and office networking needs. The Cat5e cable features four twisted pairs of copper wires, which help reduce interference and crosstalk between the pairs. It is commonly used for connecting devices like computers, routers, and switches, providing a reliable and cost-effective solution for wired networking.