8GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx8 1.5V 240pin Micron Original Part # MT18JSF1G72PDZ-1G6D1 DDR5-ECC UNBUFF Manufacturer Lenovo Memory Type DDR3

Manufacturer Lenovo  Memory Type DDR3  Capacity 32GB  Data Transfer Rate 1866Mhz  Bus Type PC3-14900

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

Manufacturer Samsung  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2400MHz  Bus Type  PC4-19200

Manufacturer Nanya  Memory Type DDR3 Capacity 8GB  Data Transfer Rate 1333Mhz  Bus Type PC3L-10600

Manufacturer Samsung Memory Type DDR4 Capacity 4GB Data Transfer Rate 2933MHz Bus Type PC4-23400

8GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx8 1.5V 240pin Micron Original Part # MT18JSF1G72PDZ-1G6D1 DDR5-ECC UNBUFF Manufacturer Lenovo Memory Type DDR3Manufacturer Micron Memory Type DDR3 Capacity 8GB Data Transfer Rate 1600Mhz Bus Type PC3 12800