I should have written the same as Rahimid. Big thanks for all of your effort. I've only used one of the two, but no problems at all. It is like the Set 2110 and the SDR33 were made for each other? Data transfer from the collector to the PC went without a hitch, even with Win 7 (albeit 32bit addition) and ProLink. I kept the baud rate down to 4800.