GPK Systems Ac Adapter for Hp External DVD Writers Hp DVD 940e 1040e 640e 740e 840e Nexxtech DVD Writers Drw-6s160px Lh-1p20ax Drive Power Cord Input: 100 - 240 V (worldwide use) Output : DC 12V 2A (1.5A Compatible) / 5V 2A (1.5A Compatible) Service & Support 1 year warranty Designed exclusively for use with the laptops 100% compatibility with the original Replacement power supply AC power adapter was tested to match and/or exceed original product at low price.