A-Tech 32GB (2x16GB) RAM for Dell PowerEdge T320, T420, T620 Tower Servers | DDR3 1600MHz ECC-RDIMM PC3-12800 2Rx4 1.5V 240-Pin ECC Registered DIMM Server Memory Upgrade Kit at Amazon.com
CMS 32GB (4X8GB) DDR3 12800 1600MHz ECC Non Registered DIMM Memory Ram Compatible with Synology Diskstation Rs3614Rpxs for Server Only - B90 at Amazon.com
32GB, 240-pin DIMM, DDR3 PC3-10600 Memory Module at Amazon.com