CMS 16GB (4X4GB) DDR2 3200 400MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with Dell® Poweredge 1850 Ddr2-Pc3200 for Server Only - B48 at Amazon.com
16GB KIT (2 x 8GB) for Tyan TN Server Series TN68B4989 (B4989T68W8HR) | DDR2 667MHz PC2-5300R ECC-RDIMM ECC Registered DIMM Server RAM Memory at Amazon.com
Kingston 16GB (2 x 8 GB) 667MHz ECC Registered DDR2 PC2-5300 240pin DIMM for Servers P/N: KTH-XW9400K2/16G at Amazon.com