We are pleased to offer you a USB cable that has been carefully designed from the beginning stages to the last detail. These cables are everything that can be expected in the tradition of W4S excellence. We have utilized copper conductors that are produced only by the unique PCOCC casting process. Traditional conductors, such as OFC, have an array of crystals in the signal path that are created during the rapid cooling stage of the casting process. The random orientation of these crystals inhibits the flow of electrons, ultimately degrading performance. Utilizing PCOCC single crystal copper conductors results in a clear signal path providing you with excellent unhindered performance. These cables are 100% shielded and cannot be mistaken with any other as they proudly carry the W4S logo. An excellent choice for any USB DAC if your seeking a step forward in performance. Areas of improvement include detail, clarity, and sound stage.