Lenovo Pf9xb -

Also, the user might be referring to a different product than what I think. Maybe they spelled it differently, like PF-9XB. Let me try to search my knowledge base for any Lenovo products with similar names. I don't remember any PF-series laptops. Maybe it's a typo? For example, maybe they meant the Lenovo ThinkPad X1 Carbon 9th Gen (2019), but that's model T490 or something else. No, that doesn't match PF9XB.