4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Samsung Original Part # M471A5244BB0-CTD capacity:4GB Manufacturer Elpida Memory Type DDR3

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

Manufacturer Samsung  Memory Type DDR3 Capacity 32GB  Data Transfer Rate 1333Mhz  Bus Type PC3L-10600

Manufacturer Samsung  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2400Mhz  Bus Type  PC4-19200

Manufacturer Hynix 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 Elpida Memory Type DDR3Manufacturer Samsung Memory Type DDR4 Capacity 4GB Data Transfer Rate 2666MHz Bus Type PC4 21300