Axiom 8GB DDR3-1333 SODIMM Kit (2 x 4GB) for Apple # MC702G/A, MD019G/A - 8 GB (2 x 4 GB) - DDR3 SDRAM - 1333 MHz DDR3-1333/PC3-10600 - Non-ECC - Unbuffered - 204-pin - SoDIMM

No matter how heavy and numerous the applications that you are using, 1333 MHz memory speed will run them smoothly SoDIMM 8 GB memory allows you to have more programs open at a time 204-pin-pin DDR3-1333/PC3-10660 interface synchronizes electrical and clock signals for an efficient data transfer rate