Up for sale is an Original Compaq /hp 18.5V 4.9A AC power supply for Compaq R4000 serials. Model is PPP012L  PA1900-05HD, Parts number 374428-001. It maybe works for HP NX9000 and ZD8000 serials laptops, but do research yourself, I won't accept compatible return. 

Free shipping for 48 lower States buyer.