The UPBRIGHT OEM SurroundBar 2000 3000 5000 20V AC Adapter Charger is a black AC adapter specifically designed for use with Polk Audio YJS05-2002700D SurroundBar 2000 3000 5000 models. With a consistent 20V output, this charger is compatible with various Polk Audio surround sound systems, ensuring reliable power supply for an immersive audio experience. Perfect for those needing a replacement charger for their Polk Audio devices, this AC adapter is a practical and efficient solution for powering your surround sound system.