Komputerbay 8GB (2X 4GB) DDR3 SODIMM (204 pin) 1333Mhz PC3 10600 for Apple 8 Komputerbay 8GB (2x 4GB) DDR3 SODIMM (204 pin) 1333Mhz PC3 10600 for Apple 8 GB with SODIMM Heatsink for extra cooling (9-9-9-25) Well Tested. Non-ECC Non parity Voltage 1.5V. GOLD LEADS. SUPPORTS DUAL CHANNEL Lifetime Warranty and comes with SODIMM Heatsink for extra cooling COMPATIBLE WITH LAPTOPS