For what it's worth: I ordered a USB keypad http://www.tigerdirect.ca/applications/ ... &CatId=536
Since the computer has to be connected to the Control box via USB I figure it's just as easy to go with that. The Keypad also functions as an USB 2 hub and it incorporates a calculator. I'll let you know how handy it turns out to be and if the Hub works as expected.
Keypad
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