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Coaxial This lesson discusses coaxial cabling, which are designed a bit differently than UDP and SDP cablings. A coaxial cable only has one cable inside to transmit information, it is not braided like UDP and SDP. The single cable inside is used to transmit information. It also has a braided shield around it to protect against electromagnetic interference (EMI). Coaxial cables are used for cable and satellite box connections. There are two types of coaxial cables: RG59 and RG6. Coaxial cabling allows us to connect to a 'T" connector on the network interface card (NIC).