Enhance your audio experience with the ASUS Xonar U3 USB Mobile Headphone Amp USB Soundcard. This unit, compatible with USB 2.0 ports, features 3.5 mm output and input audio ports for seamless audio transfer. The ASUS Xonar U3 is the perfect accessory for any computer, providing high-quality sound without compromising on mobility. This unit, from a trusted brand like ASUS, is compact and comes in a unit type form factor. With no custom bundle, it is easy to use and perfect for any use case. It is a must-have for anyone looking to enhance their audio experience on their computer.