Since the AardSync II can only output at most 2 256 clocks and you shouldn't daisy chain the 256 clocks between the 888/24 units, you will need to get our Sync DA. This will add 2 more 256 outputs so you can take a dedicated clock to each 888/24. This system can be rack mounted in a 1U rack space (see our 1U Dual Rack) and will output a total of 6 Word Clock and 4 256 outputs.