TASCAM US-322 Audio Interface With Mic (Untested)

Item: Tascam US-322 Condition: pre owned ( item is untested) I know nothing about this item, not even sure how to test it, This item came with other in a box I purchased, all other items were in good working condition. So I am guessing it is working as well, but I don't know, so it will be a good deal for someone.