The AJA ADA4 is a 4-channel bi-directional audio A/D and D/A converter, converting between balanced analogue and AES/EBU digital audio. It can be configured as a 4-channel A/D converter, a 4-channel D/A converter, a 2-channel A/D plus 2-channel D/A converter, or an AES synchroniser. An included XLR breakout cable supports up to four channels of balanced analogue-to-AES/EBU conversion, or four channels of AES/EBU-to-balanced-analogue conversion, with a simultaneous 2-channel A/D plus 2-channel D/A mode, in a compact, portable mini-converter form factor. Audio levels are configurable via DIP switch control, and the unit provides an AES11 low-jitter reference output plus 96kHz and 48kHz sample-rate conversion. An international power supply is included.