4GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx8 1.5V 240pin Kingston Original Part # capacity:4GB Manufacturer Sumsung Memory Type DDR4

Manufacturer Sumsung  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 3200Mhz  Bus Type PC4-25600

Manufacturer Crucial  Memory Type DDR3 Capacity 4GB  Data Transfer Rate 1600Mhz  Bus Type PC3L-12800

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

Manufacturer Kingston  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2400MHz  Bus Type PC4-19200

Manufacturer Kingston  Memory Type DDR3 Capacity 4GB  Data Transfer Rate 1333Mhz  Bus Type  PC3L-10600

4GB DDR3 1600Mhz PC3-12800 ECC RDIMM 2Rx8 1.5V 240pin Kingston Original Part # capacity:4GB Manufacturer Sumsung Memory Type DDR4Manufacturer Kingston Memory Type DDR3 Capacity 4GB Data Transfer Rate 1600Mhz Bus Type PC3 12800