4GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx4 1.5V 240pin Nanya Original Part # capacity:4GB Manufacturer Sumsung Memory Type DDR4

Manufacturer Sumsung  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2933Mhz  Bus Type  PC4-23400

Manufacturer Heatsink  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2933MHz  Bus Type PC4-23400

Manufacturer Micron  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 4800Mhz  Bus Type PC5-38400

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

Manufacturer Hynix Memory Type DDR3 Capacity 16GB  Data Transfer Rate 1866Mhz  Bus Type PC3L-14900

4GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx4 1.5V 240pin Nanya Original Part # capacity:4GB Manufacturer Sumsung Memory Type DDR4Manufacturer Nanya Memory Type DDR3 Capacity 4GB Data Transfer Rate 1600Mhz Bus Type PC3 12800