This is a genuine original dell laptop keyboard for the dell inspiron 15r (n5110) and m511r (m5110) laptop and notebooks. Condition: guaranteed compatible dell laptop models include: inspiron 15r (n5110) inspiron m511r (m5110) dell part number (dp/n): 4dfcjcompatible with inspiron 15r (n5110) or m511r (m5110) brand keyboard genuine dell part genuine dell parts will have a dell part # sticker, make sure yours does.