4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Hynix Original Part # HMA451U7MFR8N-TF capacity:4GB Manufacturer Samsung Memory Type DDR4

Manufacturer Samsung Memory Type DDR4 Capacity 16GB Data Transfer Rate 2400MHz Bus Type PC4-19200

Manufacturer Samsung  Memory Type DDR4 Capacity 32GB  Data Transfer Rate 2933Mhz  Bus Type  PC4-23400

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

Manufacturer Kingston  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 3200Mhz  Bus Type PC4-25600

4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Hynix Original Part # HMA451U7MFR8N-TF capacity:4GB Manufacturer Samsung Memory Type DDR4Manufacturer Hynix Memory Type DDR4 Capacity 4GB Data Transfer Rate 2133Mhz Bus Type PC4 17000