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

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

Manufacturer Micron Memory Type DDR4 Capacity 16GB Data Transfer Rate 2666Mhz Bus Type PC4-21300

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

Manufacturer Heatsink Memory Type DDR4 Capacity 4GB Data Transfer Rate 2400MHz Bus Type PC4-19200

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

32GB DDR3 1866Mhz PC3-14900 ECC LRDIMM 4Rx4 1.5V 240Pin Micron Original Part # MT72JSZS4G72LZ-1G9E2 DDR4-ECC SODIMM Manufacturer Hynix Memory Type DDR4Manufacturer Micron Memory Type DDR3 Capacity 32GB Data Transfer Rate 1866Mhz Bus Type PC3 14900