Every LCD Display has a Resolution type. The Resolution type determines the sharpness and clarity of the image displayed. The different resolution types such as XGA, SXGA, and WXGA, have different minimum and maximum resolution values. The higher the resolution, sharper will be the image on your screen. However, it is important to note that you should only buy LCD Screens with the same resolution type as shipped with the original system. If you don’t know the resolution type of your PC screen, please call the sales queue. They can help you find the right product. By referring to the size of the screen, we are referring to the diagonal size of the screen in inches. It determines the viewing area of the screen. Bigger the size, larger is the viewing area. We recommend that use the Service Tag look up feature in the Parts For Your Dell tool to choose the correct LCD Display. This feature will allow us to determine the system, screen type, and size requirements and make correct product recommendations. When a LCD is listed to be compatible with a system, it is assured that the interface type and the form factor are compatible. Please note that some of our replacement products are provided as kits or assemblies. These kits may contain additional parts required for installation. In case a product is not sold as a kit or assembly, it may require complementary parts for ease of installation. Refurbished Spare Parts are parts retrieved from Dell-branded systems that have been returned, some of which have never been used. All Dell refurbished spare parts are certified to comply with all original Dell factory performance specifications and come with a 90-day limited hardware warranty. Dell’s limited hardware warranty covers defects in materials and workmanship in your Dell-branded hardware products. For additional details on our warranty services, please visit www.dell.com/warranty .