Eathtek Replacement Keyboard for Dell Inspiron 15 3521 15(3521) 15-3521 15R 5521 3537 15R 5537 Latitude 3540 Vostro 2521 series Black US Layout, Compatible Part# V137325AS1 PK130SZ1A00 PK130SZ4A00 Compatible Model Numbers: Dell Inspiron 15 3521 15(3521) 15-3521 15R 5521 3537 15R 5537 Latitude 3540 Vostro 2521 Compatible Part Numbers: V137325AS1 PK130SZ1A00 PK130SZ4A00 Replacement and high quality,Replace your faulty, cracked or broken keyboard Each keyboard is tested before shipping All pictures are taken from the real item, please check carefully before bidding.