The Rhino R8FXX-EC is a modular PCI card that provides a maximum of 8 FXS and/or FXO interfaces for voice over IP applications. The R8FXX-EC includes built in hardware echo cancellation and module banks for the Rhino FXS or FXO modules. A maximum of 8 FXS or FXO ports can be activated and the port configuration can be changed by adding or removing FXS or FXO modules.

Below we have the R8FXX-EC card bundled with FXS and / or FXO modules to provide various port configurations. The R8FXX-EC is the base card and the numbers after the base card model number denote how many FXS or FXO ports a bundle has.