Indipro B-Stock products may show various signs of use, such as dents or scratches that do not affect product function. All B-Stock items have been quality tested and comes with a 30 day limited warranty. The 20″ 2.1mm DC Barrel to Mini USB 5 VDC Power Regulated Cable provides peace of mind when connected to optional select power solutions. The cable incorporates a voltage regulator that accepts between 5 and 19 VDC and converts it to 5 VDC compatible with USB power. The cable is 20″ long and polarity tested so you don’t have to worry about crossed polarity when powering devices. Made in USA.