BTExpert AC Adapter Power Supply for Dell INSPIRON 3646 17-3721 INSPIRON 17-3737 INSPIRON 17-5721 INSPIRON 17-5748 Charger with Cord This Replacement charger is guaranteed to meet or exceed OEM specifications. Quality: Durable and Utilizes high quality components for higher performance, more reliability and longer life. Built-in protection circuit ensures both safety and stability. Buy with confidence!: The most cost effective and long lasting product available on the market today. Peace of Mind - 30 day worry free/no question ask return policy. Fast Shipping Peace of Mind!: Freshly produced and environmentally friendly and certified merchandise. We don't keep these on shelf because of our high-volume sales. We are able to sell good quality products at low prices because we buy direct from Manufacturers & Distributors in bulk quantity. BTexpert is a registered trademark protected by the US Trademark Law and is marketed exclusively by BTEXPERT. Any attempt to copy, relist or resell of BTexpert products without permission is prohibited; we reserve the right to take action against violators.