GTO SW4000 - RVCTBD3040 Rev Counter Board (SW3000/4000)
GTO SW4000 - RVCTBD3040 Rev Counter Board (SW3000/4000)
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https://m.media-amazon.com/images/I/51BCV7cTgzL._AC_US40_.jpg
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GTO / PRO
{"Manufacturer": "GTO PRO", "Date First Available": "March 16, 2012"}