CMS 4GB (2X2GB) DDR1 2700 333MHZ ECC REGISTERED DIMM Memory Ram Upgrade Compatible with Sun® Fire V215, V245, V240, V445 Ddr1 For Server Only - B60 System Specific Memory - Newegg.com
Kingston 4 GB (2x2GB Kit) Fully Buffered ECC DDR2 SDRAM Memory Module 4 GB 333MHz DDR2667/PC25300 DDR2 SDRAM 240pin DIMM KTM5780/4G Server Memory Only at Amazon.com