Connection , with speeds ranging from at least 200 kilobits per second to extremely high speeds. Broadband is commonly used for data transfer in coaxial cable , optical fiber cable , satellite communication , microwave communication or networking processes. Different bands emerge as a result of variations in data communication speeds. And these bands are again used for data transfer in different technologies with different speeds. Some of them are DSL . The full form of DSL is the Digital Subscriber Line, which connects through Copper's telephone line.