16GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx4 1.5V 240pin Hynix Original Part # HMT42GR7MFR4C-PB capacity:16GB Manufacturer Samsung Memory Type DDR4

Manufacturer Samsung  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 Hynix Memory Type DDR4 Capacity 2GB  Data Transfer Rate 2133MHz  Bus Type PC4-17000

Manufacturer Sumsung Memory Type DDR4 Capacity 64GB Data Transfer Rate 2666Mhz Bus Type PC4-21300

Manufacturer Micron  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2133MHz  Bus Type  PC4-17000

16GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx4 1.5V 240pin Hynix Original Part # HMT42GR7MFR4C-PB capacity:16GB Manufacturer Samsung Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 16GB Data Transfer Rate 1600Mhz Bus Type PC3 12800