Purchased in 2016, slight scratches where the two units tend to rub together. This is a fantastic sounding streamer with USB and AES/EBU outputs.  Works perfectly with Roon.  I used it with a Berkeley Reference DAC using the AES output and saw no need to use the Berkeley Alpha USB, which I also have for sale.  The PS-5 power supply can power two devices at the same time, such as the matching preamp.