8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Samsung Original Part # M471A1K43CB1-CTD capacity:8GB Manufacturer Hynix Memory Type DDR5

Manufacturer Hynix Memory Type DDR5 Capacity 256GB Data Transfer Rate 4800Mhz  Bus Type PC5-38400

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

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

Manufacturer Micron  Memory Type DDR3 Capacity 8GB  Data Transfer Rate 1600Mhz  Bus Type PC3-12800

Manufacturer Kingston  Memory Type DDR4 Capacity 4GB  Data Transfer Rate 3200MHz  Bus Type  PC4-25600

8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Samsung Original Part # M471A1K43CB1-CTD capacity:8GB Manufacturer Hynix Memory Type DDR5Manufacturer Samsung Memory Type DDR4 Capacity 8GB Data Transfer Rate 2666MHz Bus Type PC4 21300