Before buying the product, please confirmcarefully whether the model number matches your computer type;

If you don’t know the model number which youneed or have other problems, please contact us to avoid the inconvenience causedby buying the item of wrong model.

If you aren’t satisfied with our product or service, please communicate withus, instead of leaving a neutral or negative response. We will try our best to resolvethe issue. I would be very grateful for giving us an opportunity to improve ourservice.