4GB 1600MHZ MOD SINGLE RANK<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Memory Speed: 4 GB</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41qZcy%2BroOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41p5RU%2ByaAL.jpg" noproxy>