4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Hynix Original Part # HMA851S6CJR6N-VK DDR5-SODIMM-Laptop RAM Manufacturer Cisco Memory Type DDR4

Manufacturer Cisco  Memory Type DDR4 Capacity 128GB  Data Transfer Rate 3200Mhz  Bus Type PC4-25600

Manufacturer Micron  Memory Type DDR4 Capacity 8GB  Data Transfer Rate 3200MHz  Bus Type PC4-25600

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

Manufacturer Hynix Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2400Mhz  Bus Type  PC4-19200

Manufacturer Micron  Memory Type DDR4 Capacity 2GB  Data Transfer Rate 2133MHz  Bus Type PC4-17000

4GB DDR4 2666MHz PC4-21300 SODIMM 1Rx16 1.2V 260pin Hynix Original Part # HMA851S6CJR6N-VK DDR5-SODIMM-Laptop RAM Manufacturer Cisco Memory Type DDR4Manufacturer Hynix Memory Type DDR4 Capacity 4GB Data Transfer Rate 2666MHz Bus Type PC4 21300