Notebook Motherboard FOR NM-B321 (5B20P19430) — Compatible with CPU A99420 for 320-15AST

Compatible replacement mainboard for the 320-15AST notebook. Board identification: NM-B321. Part number: 5B20P19430. Compatible CPU: A99420. This listing is for the motherboard assembly that matches the specified model and part codes for use as a direct replacement in 320-15AST systems.