Input: 100V-240V, 1.5A, 50Hz/60Hz; Output: 18.5V, 3.5A; Safety fuses guard against power surges; Compatible with HP(R) (Hewlett-Packard) Business Notebook NC4400, HP(R) (Hewlett-Packard) Business Notebook NW9440, HP(R) (Hewlett-Packard) Business Notebook NX6310, HP(R) (Hewlett-Packard) Business Notebook NX6315, HP(R) (Hewlett-Packard) Business Notebook NX6320, HP(R) (Hewlett-Packard) Business Notebook NX6325, HP(R) (Hewlett-Packard) Business Notebook NX8420, HP(R) (Hewlett-Packard) 384019-002, HP(R) (Hewlett-Packard) 384019-003, HP(R) (Hewlett-Packard) 391172-001, HP(R) (Hewlett-Packard) Business Notebook NC2400, HP(R) (Hewlett-Packard) Business Notebook NX8410, HP(R) (Hewlett-Packard) ED494AA, HP(R) (Hewlett-Packard) ED494AA#ABA, HP(R) (Hewlett-Packard) PA-1650-02HC, HP(R) (Hewlett-Packard) PPP009H, HP(R) (Hewlett-Packard) PPP009L & HP(R) (Hewlett-Packard) ProBook 4510S;