Crucial 8GB (2x4GB) 204-pin SODIMM DDR3 Memory Module Kit for Mac PC3-8500 The Crucial Technology 8GB (2x4GB) 204-pin SODIMM DDR3 PC3-8500 Memory Module Kit helps increase the speed of notebook computers and other small form factor computing platforms by providing two modules of 4GB each with DDR3 memory. Increasing your computer's RAM enables you to run more applications simultaneously without system glitches. Memory technology DDR3 SDRAM Interface 204-pin Form Factor SODIMM Memory Size 8 GB Memory Speed 1066 MHz Modules 2 x 4 GB Memory Standard DDR3-1066/PC3-8500 CAS Latency CL7 Voltage Regulation 1.35 V ECC Non-ECC Certifications REACH, RoHS, WEEE, Green Dot, China RoHS, ErP Signal Processing Unbuffered Dimensions 2.6 x 1.18' (66 x 30 mm).
Crucial is known industry-wide for OEM quality memory. I was impressed to with the overall service, speedy shipping, and quick email response to my queries. A word to the wise: make sure you're keeping the computer you've bought this for (an issue I had) and that you've chosen the correct memory.