Which of the following accurately describes a power inserter?

A power inserter is a device used in networks to pass both data and power through a coaxial cable, typically for powering devices like amplifiers or cameras. The correct understanding of a power inserter is reflected in the statement that it passes current similar to splitters from the same manufacturer. While splitters distribute signals to multiple outputs, a power inserter allows a continuous power flow alongside the data signal, making it functionally similar in the sense that both devices handle current flow.

This distinction is crucial because it differentiates the operational capabilities of power inserters from other network devices. By facilitating the passage of power, they serve a specific purpose within the network that is not limited to one type of connectivity or frequency. The characteristics listed in other options do not align accurately with how power inserters function, as they are not limited to low frequencies, are not unique in specifications compared to splitters, and are not used solely for data connections but also to provide power.