Features: USB DAC Converter:It has analogs output, coaxial/optical digital output, and earphone output, which can be output to earphone and used directly as USB sound card. Application:USB sound card adapter is a highly flexible sound interfaces that can be used with laptop or desktop system. No need for driver, and compatible for most operating system.No external power supply required. Easy to Use:Just plug the sound adapter into the USB interfaces, and then plug the headphones into the adapter. Transform your digital with this versatile USB converter. Connect to various devices and enjoy enhanced sound quality. Specifications: Material:Metal Input: USB Size:Approx.95x66x22.5mm/3.74x2.6x0.89in Output: coaxial/optical/3.5mm stereo Compatible System:Windows XP/box 360/ box One S Package Includes: 1xUSB DAC Converter 1xUSB Cable 1xManual note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.