4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Micron Original Part # MTA9ASF51272AZ-2G1B1 capacity:4GB Manufacturer Samsung Memory Type DDR4

Manufacturer Samsung Memory Type DDR4 Capacity 256GB Data Transfer Rate 2933Mhz Bus Type PC4-23400

Manufacturer Micron  Memory Type DDR4 Capacity 128GB Data Transfer Rate 2666Mhz  Bus Type PC4-21300

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

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

Manufacturer Micron  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 3200MHz  Bus Type  PC4-25600

4GB DDR4 2133Mhz PC4-17000 ECC UNBUFFERED DIMM 1Rx8 1.2V 288Pin Micron Original Part # MTA9ASF51272AZ-2G1B1 capacity:4GB Manufacturer Samsung Memory Type DDR4Manufacturer Micron Memory Type DDR4 Capacity 4GB Data Transfer Rate 2133Mhz Bus Type PC4 17000