This Pro-Series cable features high performance 20-gauge power wires that allow you to maximize USB Specification Current Output of 500ma at the end of the USB Mini B Connecotr, Great Cable for any Hi-Power USB 2.0 Devices such as, Mini Hard Drives, MP3/MP4 Players DVD/CD Optical Drives that use USB Bus Power. ... USB logo guarantees cables are 100% compliant with current USB or USB 2.0 Devices using Stadard USB.org Certified Mini-B Connector (5p).