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 satisfiedwith our product or service, please communicate with us, instead of leaving a neutralor negative response. We will try our best to resolve the issue. I would be verygrateful for giving us an opportunity to improve our service.