Server memory DDR3 8GB 1333MHz ECC REG 16GB ddr3 PC3 10600R Registered ECC RAM for IBM System x3530 M4 x3550 M2 x3620 M3 x3630M3|RAMs| - AliExpress
CMS 24GB (3X8GB) DDR3 10600 1333MHZ ECC Registered DIMM Memory Ram Compatible with IBM System X3650 M3 7945 Ddr3-Pc133 Ecc Reg for Server Only - B105 at Amazon.com
Server memory 16GB 2Rx4 PC3 10600 ECC REG 8GB ddr3 1333MHz Registered ECC DDR3 1333 RAM for IBM System x3650 M2 x3850 x3950 X5|RAMs| - AliExpress
SK Hynix 4gb Pc3-14900r Ddr3-1866 Registered ECC 1rx4 Memory Hmt351r7efr4c-rd for sale online | eBay