CWK&reg; Laptop Charger AC Adpater Power Supply Cord Plug for Hp Probook 4310s 4425s 4430s 4440s 4441s 4510s 4520s 4530s 4535s 4540s 4545s 4710s 4720s 4730s 5310m 5330m 6360b 6445b 6450b 6455b 6460b 6465b 6470b 6475b 6545b 6550b 6560b 6565b 6570b; HP ProBook 215 255 340 430 440 450 455 640 645 650 655 G1; HP EliteBook Revolve 810 820 850 G1 90W Battery Notebook Power Supply Cord Input Volt Range: 100-240V (Worldwide Compliant) Output: 19.5V 4.7A 90W (65W Compatible) CWK AC Adapters manufactured with the highest quality materials. Built-in overload, over-voltage, and short circuit protection; 100% compatibility with the original. 90 Days Money Back Guarantee! Buy with confidence! Products trademarked CWK are marketed and sold exclusively by CWK TECHNOLOGY. We focus on providing quality power products and excellent customer service