This is used Original Genuine HP 45W 19.5V 2.31A smart pin AC for the following HP models:

HP Probook 430 440 450 640 650 655 G1/G2, HP Elitebook 820 825 G1/G2, 840 G1, HP Revolve 810, and HP Folio 9470m 9480m

 

*** Please note this is big round tip with pin in it, the tip size is 7.5mm, not 4.5mm tiny blue tip***

Tested Good.