4GB DDR4 2666MHz PC4-21300 NON ECC UNBUFFERED DIMM 1Rx16 1.2V 288Pin Hynix Original Part # HMA851U6CJR6N-VK DDR5-SODIMM-Laptop RAM Manufacturer HPE Memory Type DDR4

Manufacturer HPE Memory Type DDR4 Capacity 64GB Data Transfer Rate 3200Mhz Bus Type PC4-25600

Manufacturer Hynix Memory Type DDR5 Capacity 64GB  Data Transfer Rate 4800Mhz  Bus Type PC5-38400

Manufacturer Samsung Memory Type DDR4 Capacity 4GB Data Transfer Rate 2933MHz Bus Type PC4-23400

Manufacturer Micron  Memory Type DDR4 Capacity 16GB  Data Transfer Rate 3200MHz  Bus Type PC4-25600

4GB DDR4 2666MHz PC4-21300 NON ECC UNBUFFERED DIMM 1Rx16 1.2V 288Pin Hynix Original Part # HMA851U6CJR6N-VK DDR5-SODIMM-Laptop RAM Manufacturer HPE Memory Type DDR4Manufacturer Hynix Memory Type DDR4 Capacity 4GB Data Transfer Rate 2666MHz Bus Type PC4 21300