4GB DDR3 1866Mhz PC3-14900 ECC RDIMM 2Rx8 1.5V 240pin Hynix Original Part # capacity:4GB Manufacturer Crucial Memory Type DDR4

Manufacturer Crucial  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 3200MHz  Bus Type PC4-25600

Manufacturer Micron  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2400Mhz  Bus Type PC4-19200

Manufacturer Micron  Memory Type DDR3 Capacity 8GB  Data Transfer Rate 1066Mhz  Bus Type PC3-8500

Manufacturer Samsung  Memory Type DDR3 Capacity 16GB  Data Transfer Rate 1866Mhz  Bus Type PC3-14900

Manufacturer Hynix Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2933Mhz  Bus Type PC4-23400

4GB DDR3 1866Mhz PC3-14900 ECC RDIMM 2Rx8 1.5V 240pin Hynix Original Part # capacity:4GB Manufacturer Crucial Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 4GB Data Transfer Rate 1866Mhz Bus Type PC3 14900