2. [Compatibility] - Compatible for HP Pavilion17BY 17-BY 17CA 17-CA Palmrest Backlit keyboard Trackpad 3. [ Manufacturer Part Number(s) ] -L22749-001 International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. About Us:High quality Passed Test ! Safe and Good package ! Good Service ! 120 days warranty from you receive !Please double check before purchase! Make sure your old Computer replacement parts the same with our listing !! You can send us pictures of your old Computer replacement parts, we help you confirm !!!