CMS 8GB (2X4GB) DDR2 5300 667MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with Dell® Poweredge T300 Server Ddr2 Ecc Reg for Server Only - B49 at Amazon.com
8GB Kit (4x2GB) DDR2 Fully Buffered PC2-5300 667MHz FBDIMM Memory RAM for 2006, 2007 Apple Mac Pro at Amazon.com