Symetrix xIn 4 - 4-Input Analog to Dante InterfaceExpand Analog I O Using Dante. For use with Symetrix Radius, Prism and Edge DSPs, the Symetrix Dante I O Expanders use Composer for setup. Using Composer eliminates switches, circuit board jumpers, and mechanical adjustments as well as the need for third party software applications. Features: 1 2 Rack Form Factor. PoE injectors included. xIn 4 4 analog mic line inputs. Optional rack and surface mounting kits sold separately.