8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Micron Original Part # MTA8ATF1G64HZ-2G6E2 DDR5-NON ECC Desktop Manufacturer Cisco Memory Type DDR4

Manufacturer Cisco Memory Type DDR4 Capacity 8GB Data Transfer Rate 2133Mhz Bus Type PC4-17000

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

Manufacturer Micron  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2133MHz  Bus Type  PC4-17000

Manufacturer Hynix Memory Type DDR4 Capacity 256GB Data Transfer Rate 2933Mhz Bus Type PC4-23400

8GB DDR4 2666MHz PC4-21300 SODIMM 1Rx8 1.2V 260pin Micron Original Part # MTA8ATF1G64HZ-2G6E2 DDR5-NON ECC Desktop Manufacturer Cisco Memory Type DDR4Manufacturer Micron Memory Type DDR4 Capacity 8GB Data Transfer Rate 2666MHz Bus Type PC4 21300