The Point Source Audio DX8O is a 4 AES/EBU stereo out card for audio toolBox with 4 XLR connectors.Networked, analog, and digital interface cards make network convergence simple and seamless when used with the Auvitran AVBx3 (1U, 3 slots) or AVBx7 (2U, 7 slots) Audio Toolboxes.