512MB RAM Memory Upgrade for the Sony VAIO PGC Series [PGC-K13， PGC-K23， PCG-K45] (DDR-333， PC2700， SODIMM)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Guaranteed Compatible for the Sony VAIO PGC-K13， PGC-K23 and PGC-K45 Series Laptops</li><li>Speed up your system with up to 1.0GB of Memory!</li><li>Lifetime Replacement Warranty!</li><li>Will ship the same day when ordered at or before 4pm EST! All others ship next day!</li><li>Fully-staffed call center to help with installation or inquiries! Call 866-335-1355 with questions or for help!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41H3qmPSU1L.jpg" noproxy>