Our product is a high-quality replacement battery for the Dell Inspiron MR90Y 5421 15-3521 Notebook. With a capacity of 65Wh, this XCMRD 3421 battery is designed to provide reliable and long-lasting power performance for your laptop. We are a professional factory with extensive experience in producing laptop batteries. All of our products are rigorously tested and certified to meet or exceed the original equipment manufacturer (OEM) standards. With a focus on quality and affordability, our team is dedicated to providing our customers with the best value for their money. Trust us to keep your laptop powered and running smoothly with our XCMRD 3421 battery for Dell Inspiron.