This is an Ultimate Generation USB cable from Silver Running, a Japanese brand of high-end audio accessories. I am confident that this cable will help resolve any dissatisfaction with your audio equipment and elevate your system. I have been using it as an upgrade from the AIM UA3, but I am selling it because I no longer need it due to a system change following a move. Although it is the top-of-the-line grade from the previous generation, it is still of a high level, and I find the improvement in the speed of the music and the change in the amount of information appealing. This is subjective and may depend on your system, but the sound tends to become clearer, wider, and deeper, making the music appear more layered. - With original box - Non-smoking, no pets - Packed and ready to ship I am also selling iFi Gemini 3.0 USB cables and AIM SHIELDIO UA3 cables. If you are planning to spend Golden Week at home, how about this for your audio exploration? ※ Search Keywords Silver Running Ultimate Generation Silver wire Special conductor Cryo High-end audio High sound quality