Be sure to compare your fan with the one shown in the photo: connector, protruding elements, fixings. Pay attention to the product compatible models.make sure what you need is in the list. Sticker may vary. the same qulity fan will send out depending on the photo. Some notebook models may use different types of coolers. We provide original and OEM laptop Fan. Original parts refers to the parts produced by the manufacturer that matches the production of laptops, but there is more than one original parts manufacturer. We will ship according to the inventory situation to ensure that it is of original quality from the original manufacturer. OEM parts refer to parts produced by other manufacturers that can match this laptop model. The quality is not as good as the original one, but the price is cheap. For products with high quality requirements, please choose original ones. Some laptop models are too old, and the original parts manufacturers no longer produce and provide follow-up services. We can only provide OEM parts for customers to replace.