DDR4 3200MHz 8GB = PC4-25600 8GB. DDR4 3200MHz 16GB = PC4-25600 16GB. DDR4 2666MHz 8GB = PC4-21300 8GB. Frequency: 2666MHz/3200MHZ. Charting Port& Flex Cable. Application: Laptop. Userful links. Cover Case.
eBay