In case you want a balanced ZEN DAC+CAN stack but not to spend 90 USD for the interconnect, you find cheap (and available) alternatives from DELOCK on amazon DE and UK (10EUR/19GBP):
and
I have the 0.5m and 2m ones and a 2m extension and all 5 poles are connected in all of them (i.e. the ground/shield is linked as well) and they work with the original ZenDAC and the ZenCAN.
Of course, they are just cheap cables and nothing fancy but they work as they are supposed to.
EDIT: the UK one is out of stock already… but they are available on ebay as well…