8GB DDR4 2666Mhz PC4-21300 ECC RDIMM 1Rx4 1.2V 288Pin Samsung Original Part # MTA18ASF1G72PZ-2G6B1 DDR5-ECC UNBUFF Manufacturer Hynix Memory Type DDR4

Manufacturer Hynix Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2133Mhz  Bus Type PC4-17000

Manufacturer Micron  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2666Mhz  Bus Type PC4-21300

Manufacturer Samsung Memory Type DDR4 Capacity 64GB Data Transfer Rate 2933Mhz Bus Type PC4-23400

Manufacturer Lenovo  Memory Type DDR4 Capacity 128GB  Data Transfer Rate 2933Mhz  Bus Type PC4-23400

Manufacturer Samsung  Memory Type DDR5 Capacity 8GB  Data Transfer Rate 5600Mhz Bus Type PC5-44800

8GB DDR4 2666Mhz PC4-21300 ECC RDIMM 1Rx4 1.2V 288Pin Samsung Original Part # MTA18ASF1G72PZ-2G6B1 DDR5-ECC UNBUFF Manufacturer Hynix Memory Type DDR4Manufacturer Samsung Memory Type DDR4 Capacity 8GB Data Transfer Rate 2666Mhz Bus Type PC4 21300