4GB DDR4, 288-pin DIMM, 2666MHz, Unregistered (unbuffered)
Micron MTA4ATF51264AZ-2G6E1, 4 GB, DDR4, 2666 MHz, 288-pin DIMM
Micron MTA4ATF51264AZ-2G6E1. Internal memory: 4 GB, Internal memory type: DDR4, Memory clock speed: 2666 MHz, Memory form factor: 288-pin DIMM