RAM & Memory Upgrades
8GB DDR4 3200MHz PC4-25600 1.2V 1Rx8 260-Pin SODIMM Laptop RAM Memory Module M471A1K43DB1-CWE
Density: 8GB | Memory Type: DDR4 Speed: 3200 Mbps | Dimm Type: SODIMM No of the pin: 260 | Voltage 1.2V Component composition: (1G x 8) x 8 chips. Latest Version – Rev "D"."
https://www.bizrate.co.uk/ram_memoryupgrades/8gb-ddr4-3200mhz-pc4-25600-1-2v-oid36696917066.html