This listing is for a 5 pack of USB extension cables. I don't know the exact length, but these cables are ~4 feet long and allow your USB device to stand upright. These are great for giving USB WiFi adapters some extra range, or for adding some makeshift extra front USB ports on top of your case!   Message me for single adapter or bulk purchasing!   Check my Jawa page or see www.hammerpcs.com for more items from me!