8GB DDR3 1866Mhz PC3-14900 ECC RDIMM 2Rx8 1.5V 240pin Vlp/Hynix Original Part # HMT41GV7AFR8C-RD DDR3-RDIMM Server Manufacturer Crucial Memory Type DDR4

Manufacturer Crucial  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2666MHz  Bus Type PC4-21300

Manufacturer Crucial  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2666MHz  Bus Type PC4-21300

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

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

Manufacturer Kingston  Memory Type DDR4 Capacity 16GB Data Transfer Rate 2133Mhz  Bus Type  PC4-17000

8GB DDR3 1866Mhz PC3-14900 ECC RDIMM 2Rx8 1.5V 240pin Vlp/Hynix Original Part # HMT41GV7AFR8C-RD DDR3-RDIMM Server Manufacturer Crucial Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 8GB Data Transfer Rate 1866Mhz Bus Type PC3 14900