Full Details from Amazon.com : http://www.amazon.com/gp/product/B00BZ9ZE9C?tag=onigi-20
Samsung 4GB PC3-12800 DDR3-1600MHz non-ECC Unbuffered CL11 240-Pin DIMM M378B5273DH0-CK0
Memory Type DDR3 SDRAM Capacity 4GB Pins 240 Pin Bus Type PC-12800 Non-ECC Cycle Time 15ns Cas CL11 Data Transfer Rate 1600Mhz Memory Clock 200Mhz Rank Rank 2 Voltage 15
