8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Hynix Original Part # HMA81GS6CJR8N-VK DDR4-ECC UNBUFF Manufacturer Samsung Memory Type DDR4

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

Manufacturer Hynix Memory Type DDR3 Capacity 16GB  Data Transfer Rate 1333Mhz  Bus Type PC3L-10600

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

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

Manufacturer Samsung Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2400MHz  Bus Type PC4-19200

8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Hynix Original Part # HMA81GS6CJR8N-VK DDR4-ECC UNBUFF Manufacturer Samsung Memory Type DDR4Manufacturer Hynix Memory Type DDR4 Capacity 8GB Data Transfer Rate 2666MHz Bus Type PC4 21300