4GB Kit [2x2GB] DDR-400 PC3200 ECC Registered 184 Pin 2.5V CL=3 Memory 128X4 SERVER MEMORY 4GB Kit [2x2GB] DDR-400 PC3200 ECC Registered 184 Pin 2.5V CL=3 Memory 128X4 When you purchase RAM from &lt;b&gt;4AllDeals&lt;/b&gt;, it comes with a lifetime warranty, as well as lifetime telephone technical support from our US-based technicians. &lt;b&gt;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.&lt;/b&gt; Put your trust in a company that has been in business for 12 years, not some fly by night seller you won't be able to get ahold of! &lt;b&gt;PLEASE NOTE&lt;/b&gt; This ad is for an &lt;b&gt;ECC REGISTERED&lt;/b&gt; memory module. Most consumer desktops take NON-ECC memory. Please pay extra attention prior to ordering, and make sure that your computer can take ECC REGISTERED memory.