30m Crimped RJ45 Ethernet UTP LAN Cable

The ethernet cables connect devices such as PCs, routers, and switches within a local area network. Ethernet cables plug into Ethernet ports, which are larger than phone cable ports. An Ethernet port on a computer is accessible through the Ethernet card on the motherboard. This port is usually on the back of a desktop computer, or on the side of a laptop.
Ethernet is typically faster than a Wi-Fi connection, and it offers other advantages as well. A hardwired Ethernet cable connection is more secure and stable than Wi-Fi. You can test your computer's speeds on Wi-Fi versus an Ethernet connection easily.

This Ethernet cable is 30 meters long and gives you the guarantee of being connected to the network (short of an internal problem within the cable’s wiring).