Hi, I'm selling my Lynx AES16e with 2 breakout cables and the PCIe expansion chassis. The best way to avoid USB and get the most out of your DAC by using its AES/EBU input (or S/PDIF coaxial input with an adapter). There are 2 breakout cables. The first one, pictured on the left, is made by Lynx for AES16e specifically and costs $60. It is 6 feet, rather bulky, and has a total of 8 XLR inputs/outputs. https://www.lynxstudio.com/products/cbl-aes1604/ The second one, which is what I personally used, was made by Redco Audio. It is 3 feet, much lighter, and has only a single Neutrik XLR output for ease of use. https://www.redco.com/Custom-Cable.html The PCIe expansion chassis is Sonnet Echo Express SE. It's the discontinued silver version (now replaced with black). The Sonnet comes with its stock Thunderbolt cable to connect to your computer (not pictured). I'm selling everything for $300 net to me.