This is a 12V Powered USB Cable interface ( USB Power Plus ) -- It is NOT USB-A. Used Item. May have scuffs, scratches, dents, minor cracks, and other signs of wear from normal use. Multiple available, unit pictured is representative of the condition of all available units. Tested to work on a Windows 10 Pro OS device (device not included). Input programmed as keyboard input +"Enter" key. Model is GD4400 Class varies, and can include: GD4430-BK GD4430-BK-B GD4430-BKK1B GD4430-BKK10B-C513 Other Class Not Listed You will receive a unit with one of the above classes or another class not listed above at random for every quantity ordered. If a specific class is needed, please message us before purchase with the class needed and quantity and we will check if we have units suitable for your needs. One unit is shipped for every quantity ordered, regardless of class. Need a larger quantity than listed? Please message us. We do not automatically ship to AK/HI, APO/FPO, or US protectorates. If you would like an item shipped to one of the above locations, please send us a message.