Check the listing for details. TAMS USB Controlled 1848A 4 x 8 Matrix Switch. Condition: Used. Listed at 39.97 USD. In this listing you will find a used switch. Came in from an industrial clean out. Was marked working, but did not include any further cables, documentation, etc. The main unit pictured however is 100% guaranteed working. General Disclaimer: Unit may need a good cleaning. This includes, but is not limited to being dusty from long term storage, stickers or sticker residue from property tags, etc. Unless otherwise noted or pictured there are no additional accessories, power cords, or manuals. If you need a better description or picture of any item don't hesitate to ask. Check out my other auctions for more great stuff! Please Note: We sell surplus, unwanted, used, parts, etc electronics. We test to the best of our ability. If this is something you are worried about please send an email so we can give the item you are interested in a more thorough inspection. Bid Often! We happily combine shipping. Listing and template services provided by inkFrog