Corsair CMSA8GX3M2A1066C7 Apple 8 GB Dual Channel Kit DDR3 1066 (PC3 8500) 204-Pin DDR3 Laptop SO-DIMM Memory 1.5V Pin Out: 204 Pin Voltage: 1.5V Compatible with MacBook Pro (13-inch, Mid 2009), MacBook Pro (13-inch, Mid 2010), MacBook Pro (15-inch, Mid 2010), MacBook Pro (15-inch, 2.53GHz, Mid 2009), MacBook Pro (15-inch, Mid 2009), MacBook Pro (17-inch, Mid 2010), MacBook Pro (17-inch, Mid 2009), MacBook Pro (17-inch, Early 2009) No Fan Included Memory Type: DDR3; Speed: 1066MHz Density: 8GB (2x4GB SO-DIMM) Speed: 1066MHz CL7 Timing: 7-7-7-20 (1066MHz) Type: DDR3 Format: SO-DIMM