APPLE MACBOOK PRO 15 A1398 LATE 2013 2014 I/O USB HDMI BOARD & CABLE 820-3547-A
Mid 2014 : Models such as MGXA2LL/A and MGXC2LL/A. HDMI Port : Supports external display output. Manufacturer Part Number (MPN) : The number820-3547-A is printed directly on the circuit board for identification.