32GB DDR3 1866Mhz PC3-14900 ECC LRDIMM 4Rx4 1.5V 240Pin Micron Original Part # MT72JSZS4G72LZ-1G9E2 DDR4-ECC SODIMM Manufacturer Samsung Memory Type DDR3

Manufacturer Samsung  Memory Type DDR3  Capacity 32GB  Data Transfer Rate 1333Mhz  Bus Type PC3L-10600

Manufacturer Hynix Memory Type DDR4 Capacity 16GB Data Transfer Rate 2666MHz Bus Type PC4-21300

Manufacturer Hynix Memory Type DDR3 Capacity 32GB  Data Transfer Rate 1600Mhz  Bus Type PC3L-12800

Manufacturer Micron  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2933Mhz  Bus Type PC4-23400

32GB DDR3 1866Mhz PC3-14900 ECC LRDIMM 4Rx4 1.5V 240Pin Micron Original Part # MT72JSZS4G72LZ-1G9E2 DDR4-ECC SODIMM Manufacturer Samsung Memory Type DDR3Manufacturer Micron Memory Type DDR3 Capacity 32GB Data Transfer Rate 1866Mhz Bus Type PC3 14900