4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Samsung Original Part # M471A5244BB0-CTD capacity:4GB Manufacturer Sumsung Memory Type DDR4

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

Manufacturer Samsung  Memory Type DDR3 Capacity 8GB  Data Transfer Rate 1866Mhz  Bus Type  PC3-14900

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

Manufacturer Hynix Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2133MHz  Bus Type PC5-44800

Manufacturer Elpida  Memory Type DDR3  Capacity 8GB  Data Transfer Rate 1600Mhz  Bus Type PC3L-12800

4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Samsung Original Part # M471A5244BB0-CTD capacity:4GB Manufacturer Sumsung Memory Type DDR4Manufacturer Samsung Memory Type DDR4 Capacity 4GB Data Transfer Rate 2666MHz Bus Type PC4 21300