4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Micron Original Part # MTA4ATF51264HZ-2G6E3 capacity:4GB Manufacturer Micron Memory Type DDR3

Manufacturer Micron  Memory Type DDR3 Capacity 16GB  Data Transfer Rate 1066Mhz  Bus Type PC3-8500

Manufacturer Samsung  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2666Mhz  Bus Type PC4-21300

Manufacturer Kingston  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 2133MHz  Bus Type PC4-17000

Manufacturer Samsung  Memory Type DDR4 Capacity 32GB  Data Transfer Rate 3200Mhz  Bus Type PC4-25600

4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Micron Original Part # MTA4ATF51264HZ-2G6E3 capacity:4GB Manufacturer Micron Memory Type DDR3Manufacturer Micron Memory Type DDR4 Capacity 4GB Data Transfer Rate 2666MHz Bus Type PC4 21300