4GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 1Rx4 1.35V 240pin Hynix Original Part # HMT351R7CFR4A-PB capacity:4GB Manufacturer Samsung Memory Type DDR4

Manufacturer Samsung  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 3200Mhz  Bus Type  PC4-25600

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

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

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

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

4GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 1Rx4 1.35V 240pin Hynix Original Part # HMT351R7CFR4A-PB capacity:4GB Manufacturer Samsung Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 4GB Data Transfer Rate 1600Mhz Bus Type PC3L 12800