If your going this route why even use a 66 block ?
your not going to need to pull the clips to troubleshoot nor will you be punching other cables down

DB to cat5e IW Scotch locked since money is the controlling factor a few scotchlocks will do the job as well or better than the 66 block for a fraction of the cost

since its in conduit why bother with DB ?

Skip
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Serving SW and West central Fl since 1984