The majority of newer audio devices (such as TVs, cable boxes, CD players and video gaming consoles) only outputs audio signals through digital optical or digital coaxial connections. That restriction can avoid you from outputting noise to your stereo devices which might only accept analog signals. Our DAC s the perfect option to transform digital audio signals to analog audio. When in analog format, the signal can then be dispersed up to 150 feet away, surpassing the length constraints of digital audio. This not only offers included versatility for devices positioning, but also saves cash by removing the need to acquire digital repeaters. This plug-and-play option needs no added software or motorists and supports Windows? 7. As much as 3 various devices can be linked at the same time making use of S/PDIF coaxial, TOSLINK optical, or USB input. This not only accommodates a variety of devices types but also allows for several setups based upon the user's customized setup.