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
SK HYNIX 32GB PC3-10600R DDR3-1333 Registered ECC 4RX4 Memory HMT84GR7BMR4C-H9 at Amazon.com
HP 8GB (1 x 8 GB) 1333 MHz (2Rx4 PC3L-10600R) 240-pin DIMM DDR3-1333 Memory Module (647897-B21) at Amazon.com
DELL 0R45J - 32GB 4Rx4 PC3L-10600R DDR3-1333MHz
DELL 0146H - 8GB 2Rx4 PC3L-10600R DDR3-1333MHz by DELL
8GB Server Memory, 8GB PC3 10600R DDR3 1333MHZ 2Rx4 ECC REG 240Pin Computer Memory Components Server Ram Support Dual/Single CPU Motherboard at Amazon.com