If you are not satisfied with our products and want to return,exchange products or refund, please contact us first.We always try our best to provide satisfied solution for our customer. Please NOTE that for the same product, the internal screen model of the laptop may be different. We will randomly send a compatible screen model, if you need a specific model, please email us to confirm before ordering. Please check your laptop model before you purchase. If you don't know whether it is the correct item you need, please contact us with specific model or take a photo of the label on the back of your original screen. Size:15.6 inch, Resoluiton: FHD 1920X1080 , Connector: 30 pins. Compatible Model: for HP Elitebook 850 G7 850 G8.