4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Samsung Original Part # M391A5143EB1-CPB capacity:4GB Manufacturer Sumsung Memory Type DDR4

Manufacturer Sumsung  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2400Mhz  Bus Type PC4-19200

Manufacturer Micron  Memory Type DDR4 Capacity 32GB  Data Transfer Rate 2666Mhz  Bus Type  PC4-21300

Manufacturer Kingston Memory Type DDR4 Capacity 32GB Data Transfer Rate 3200Mhz Bus Type PC4-25600

Manufacturer Micron  Memory Type DDR4 Capacity 64GB  Data Transfer Rate 2400Mhz  Bus Type  PC4-19200

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

4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Samsung Original Part # M391A5143EB1-CPB capacity:4GB Manufacturer Sumsung Memory Type DDR4Manufacturer Samsung Memory Type DDR4 Capacity 4GB Data Transfer Rate 2133Mhz Bus Type PC4 17000