IBM 91P8393 Laptop CPU Cooling Fan, brand new replacement that is made from A grade quality parts, is tested throughout the manufacturing process to match the original IBM 91P8393 Fan's performance. For it is made under the international standards and certification(CE, UL Listed, ISO9001/9002), we ensure that our replacemnt IBM 91P8393 CPU fan will be quite compatible with original equipment and specifications. With 30-days money-back guarantee on all the products.