4GB DDR3 1333MHZ SO-DIMM<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4 GB</li><li>DDR3 SDRAM</li><li>1333 MHz DDR3-1333/PC3-10600</li><li>Non-ECC</li><li>Unbuffered</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31dbtyqvmCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31uSgvPDEfL.jpg" noproxy>