Full Details from Amazon.com : http://www.amazon.com/gp/product/B009AEYBYI?tag=onigi-20
Samsung 4GB DDR3 PC3-12800 1600MHz 204-Pin SODIMM Laptop Memory Module RAM. Model M471B5273DH0-CK0
Cas CL11
Voltage 15
4GB Single Stick Dual rank if bought in pairs
204 pins
Samsung Part number M471B5273DH0-CK0
