This is an Acoustic Revive audio LAN cable. The standard length is 1 meter, but this one is 2.5 meters. I purchased it used, but I haven't used it, so I'm selling it. It works without any problems. The outer covering has a lot of dirt from the time of purchase. I wiped it lightly with ethanol, but the printing started to come off, so I stopped there. I think this is a valuable cable now, as it uses PCOCC-A, which is no longer manufactured, and the length is also easy to use. Length...Under 2m to 3m