Lenovo ThinkCentre M800z 10EV. Lenovo ThinkCentre M900z 10F5. Lenovo ThinkCentre M800z 10ET. Class: DDR4. Capacity: 16GB. Kit Capacity: 16GB. Your computer loads a program or file you select from the hard drive in to your computers RAM, then it will access each bit of data from there.
eBay