iBasso Reinvents Their Beloved CB19 Cable, Updating to All USB-C Connections USB-C connection for DAC dongle, phone and dedicated power supply USB-C power supply interface provides a more compact and portable system Get clean quality power with minimal interference while preserving your phone's battery High-Purity Oxygen-Free Copper Silver-Plated conductor Longer cable for easy and convenience, about 9" long Clean Power Smartphones typically have a restricted output current for OTG devices. Furthermore, smartphones yield a lot of internal interference, so powering from them isn’t the most ideal. With the CB19C, dongles can power from a clean source, such as a power bank, instead of your smartphone. Your DAC dongle gets quality power with minimal interference with the CB19C while simultaneously preserving the battery on your smartphone, achieving optimal performance from both your phone and the dongle.