A:Answer Thank you for your Interest! Yes, the Insignia™ Optical/Coaxial Digital-to-Analog Audio Converter should work with Xfinity cable. You can use it to convert the digital audio signal from your Xfinity cable box (via optical or coaxial connection) into an analog audio signal. This will allow you to connect your cable box to devices such as older TVs, stereo systems, or speakers that only support analog audio input. By doing so, you can potentially eliminate the need for renting a cable box from Xfinity and save money in the process. However, please ensure compatibility with your specific setup and devices before making a purchase. https://www.bestbuy.com/site/insignia-optical-coaxial-digital-to-analog-audio-converter-black/4226000.p?skuId=4226000
