8GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 2Rx8 1.35V 240pin Hynix Original Part # HMT41GR7AFR8A-PB DDR5-SODIMM-Laptop RAM Manufacturer Sumsung Memory Type DDR4

Manufacturer Sumsung  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 2666Mhz  Bus Type PC4-21300

Manufacturer Hynix Memory Type DDR4 Capacity 8GB  Data Transfer Rate 2133MHz  Bus Type  PC4-17000

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

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

8GB DDR3 1600Mhz PC3L-12800 ECC RDIMM 2Rx8 1.35V 240pin Hynix Original Part # HMT41GR7AFR8A-PB DDR5-SODIMM-Laptop RAM Manufacturer Sumsung Memory Type DDR4Manufacturer Hynix Memory Type DDR3 Capacity 8GB Data Transfer Rate 1600Mhz Bus Type PC3L 12800