RCN Cable is a provider of Internet, digital cable TV, and phone packages over three network types: cable, DSL, and fiber optic.
Cable is their most widespread Internet offering.
With cable, data is delivered via fiber to a local node within subscriber neighborhoods, where data changes over to an electrical signal that can be sent via an existing coaxial cable network, which RCN originally invested in for TV service.
Using existing copper cables in the last mile makes cable plans somewhat slower than fiber, but saves the high up-front cost of installing brand new cables for the provider.
RCN’s fiber offerings will terminate inside or near your building, allowing speed far above what's available through traditional DSL and cable.
Fiber connections are generally considered the premium option for Internet service. True FTTH packages offer the best speed available today.