AC-adapter 65 Watt 19.5V original for HP Compaq 610 - sparepartworld.com
Laplogix 65W Laptop Charger for HP Compaq 610 6720S 18.5V 3.5A Adapter Yellow Pin 4.8mm X 1.7mm with Power Cord Cable - Buy Laplogix 65W Laptop Charger for HP Compaq 610 6720S
18.5V 3.5A 65W Charger AC for HP Power Adapter Compaq 6720s 500 - BatteryMall.com
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Small Pin Replacement for HP COMPAQ Notebook, 18.5V 3.5A 65W Power Cord