Works with any Yamaha THR series amplifier Charges your amplifier with any USB-C PD device that can supply 15V 3A (laptop chargers, battery banks, etc) Not compatible with charging from USB-A chargers or chargers that only support lower voltages. Please check your charger before ordering. This cable allows you to charge your Yamaha THR series amplifier from a supported USB-C PD charger. It will only work with USB-C chargers that can supply 15V. Check the label or specifications of your charger to be sure it will work. Most chargers have this information printed on them. The cable has a female USB-C connector on one side the other attaches directly to the original charging port of your THR series amplifier.