UpBright&reg; NEW 18.5V 3.5A AC / DC Adapter For HP Spare 693711-001 AD9043-021G2 P/N 677774-004 Laptop Notebook 65W Power Supply Cord Cable PS Battery Charger Mains PSU (Note: This adapter has OD: 7.4mm Black Big Plug Tip with center pin inside as the image. NOT OD: 4.5mm Blue Small Plug Tip. Please Check For Compatibility With Your Unit. Thanks.