?WHAT YOU GET: 1X AC Adapter(include power cord), 1X Package. 24 hours customer service,30 days money back or exchange, free 18 months warranty. ?Features: Safety, Light and Thin, High Quality, Fast and Efficient charging, Great for the travel, home or office, Internal smart circuit keeps you and your device safe with multiple protections, including over current protection, over voltage protection, short circuit protection, over heating protection, overload protection, surge protection and under voltage protection. ?Compatible with P/N: LA240PM180, 7XCR6, 07XCR6, DA240PM180, 0RYJJ9, RYJJ9, 8N2T2, 450-AGCX, KJXPP. ?Compatible models: Dell Precision 7520, Precision 7720, Alienware 15 R4, Alienware 17 R5, Dell Precision 7730, DELL Alienware 15 R1 R2 R3 R4 Series, Alienware 17 R3, Precision M6400, DELL Precision M6600, Precision M6700, Precision M6800, Precision M6500. ?Specifications: INPUT: AC/DC 100-240V 50-60Hz; OUTPUT: 19.5V 12.3A. Power: 240W, CONNECTOR SIZE: 7.4mm*5.0mm(Refer the pictures).