The mixer has 16 analog XLR outputs, as well as 6 balanced line-level 1/4" Aux inputs and outputs, and two 1/4" headphone jacks. The talkback section allows you to communicate with the integrated mic or an external mic. The mixer also has a pair of AES50 ports that feature Klark Teknik SuperMAC networking capability for use with 48-channel digital snakes for ultra-low jitter and latency. The system also has an integrated expansion port that ships with a 32 x 32 XUF FireWire/USB audio card installed.