Crucial CT51264BC1339 4GB DDR3 PC3-10600 204-pin SODIMM Notebook Memory

4GB / 204-pin SODIMM / 1333MHz / Unbuffered / Non-ECC / DDR3-1333
# In short, 204-pin small outline dual inline Memory modules (SODIMMs) are the form factor used to provide DDR3 memory modules for Notebook Computers and other small form factor computing platforms. 204-pin SODIMMs are currently available in PC3-8500 (DDR3 1333MHz) speeds. To use DDR3 memory, your system must have both a 204-pin SODIMM slot and a chipset that supports DDR3 memory. A DDR3 SODIMM will not fit into DDR2 or DDR memory sockets. Module Size: 4GB
# Package: 204-pin SODIMM
# Feature: DDR3 PC3-10600
# Specs: DDR3 PC3-1066, CL=9, Unbuffered, NON-ECC, DDR3-1333, 1.5V, 512Meg x 64