8GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 1Rx4 1.35V 240pin Hynix Original Part # HMT41GR7AFR4A-PB DDR5-SODIMM-Laptop RAM Manufacturer Hynix Memory Type DDR4

Manufacturer Hynix Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2133Mhz  Bus Type PC4-17000

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

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

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

8GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 1Rx4 1.35V 240pin Hynix Original Part # HMT41GR7AFR4A-PB DDR5-SODIMM-Laptop RAM Manufacturer Hynix Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 8GB Data Transfer Rate 1600Mhz Bus Type PC3L 12800