A coaxial RF connector (radio frequency connector) is an electrical connector designed to work at radio frequencies in the multi-megahertz range. RF connectors are typically used with coaxial cables and are designed to maintain the shielding that the coaxial design offers. Better models also minimize the change in transmission line impedance at the connection in order to reduce signal reflection and power loss. Common RF interface types include: BNC, SMA, SMB, F-CONNECTOR, FAKRA, HSD, N-CONNECTOR, MINI-FAKRA, DIN, etc.