Compatible Models Hp Pavilion 17-BY 17-CA series: 17-by1033dx 17-by0053cl 17-by0021dx 17-by1053dx 17-by1022cl. for HP 240 G7, 245 G7, 250 G7, 255 G7, 470 G7, 340 G5, 348 G5 Series. We support 12 months of warranty, 30 days money back, 24 x 7 email support. As you begin to use the product, any questions you can contact with us via \"Your Orders\" tab in your Amazon account, we will respond within 24 hours.