Amazon.com: Accessory USA AC DC Adapter for Samsung HW-K450 HW-K450/ZC HW- K450/ZK HW-K450/EN HWK450 2.1-Channel Soundbar System Power Supply Cord : Electronics
Amazon.com: HKY 24V AC Adapter Compatible with Samsung HW-J355 HW-H450 Donga HW-450 HW-M550 HW-H750 HW-K550 HW-K551 HW-J8500 HW-J7500 HW-J7501 HW-K450 HW-H570 HW-K650 HW-J8500R Soundbar Power Supply Cord Charger : Electronics
Samsung Soundbar Comparison: HW-B450 vs HW-B550 vs HW-B650