Just bought some of this for my Macbook Pro, only just changed price it seems as it was £79 when I clicked add to cart, and £66.69 in cart.
Not really for everyone, but cheap for 4gb of DDR3 laptop memory.
Module Size: 4GB kit (2GBx2)
Package: 204-pin SODIMM
Feature: DDR3 PC3-8500
Specs: DDR3 PC3-8500 CL=7 Unbuffered NON-ECC DDR3-1066 1.5V 256Meg x 64