A-Tech 24GB (6 x 4GB) DDR3 1333 MHz PC3-10600R ECC RDIMM 1Rx4 1.5V ECC Registered DIMM 240-Pin Server & Workstation RAM Memory Upgrade Kit at Amazon.com
CMS 24GB (6X4GB) DDR3 10600 1333MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with Dell® Poweredge T710 Ddr3 Ecc Reg for Server Only at Amazon.com
Kingston ValueRAM 16GB Kit (2x8GB) 240-Pin DDR3 SDRAM ECC Registered DDR3 1333 Server Memory Model (KVR1333D3D4R9SK2/16G) at Amazon.com