RME Digiface AVB, 3.0 Audio Interface, 128 Input channels / 128 output channels, The channels are organized in streams, each of which can span from 2 to 32 channels, 16 Input streams and 16 output streams, Gigabit Ethernet (802.3 compliant), 1 Headphone output TRS stereo, Wordclock I / O, No external power supply required, EEE 802.1 BA Compliant AVB Stack, IEEE 1722 AVTP / 1722.1 AVDECC compliant, Includes TotalMix FX and software package with AVDECC controller to detect all AVB devices in a network and manage connections