Acer AP.0650A.004 is a mains adapter for compatible Acer notebook computers. It delivers 65 W at 19 V and 3.42 A.
The round, angled output connector measures 5.5 mm outside and 1.7 mm inside, and has no pin. These details can help check the plug against the device.
The distributor lists Acer laptops and monitors as intended device types; another listing describes it as a product-specific Acer notebook charger. A three-pole C5 power cable is included according to the distributor. The adapter is black.