661-5861 4 GB, DDR3 1333, SO-DIMM, SDRAM- 13inch A1278 MacBook Pro Early Late 2011 NB-4141W
Apple part number: 661-5861, 661-5861 4 GB, DDR3 1333, SO-DIMM, SDRAM- 13inch A1278 MacBook Pro Early Late 2011
Apple part number: 661-5861
661-5861 4 GB, DDR3 1333, SO-DIMM, SDRAM- 13inch A1278 MacBook Pro Early Late 2011