4GB (2x2GB) RAM Memory Compatible with Dell Dimension E520 Series Desktop (DDR2-667MHz 240-pin DIMM)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>When you purchase RAM from 4AllDeals， it comes with a lifetime warranty， as well as lifetime telephone technical support from our US-based technicians. PLEASE NOTE If you do not purchase this module from 4AllDeals direct， you do not get the lifetime warranty or tech support offered in this ad.</li><li>240 pin module</li><li>RAM Memory will speed up your computer!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41wQlgI7dDL.jpg" noproxy>