16 GB DDR4 2666 MHz PC4-21300 ECC Reg RDIMM per 2017 Apple iMac Pro A1862 RAM originale
Frequency: 2666MHz (MT/s). Compatible Model Information A1862 Class: DDR4. Ram Class : DDR4. SubFamily : Late 2017. Regular Apple iMacs require the use of SODIMM modules. Capacity Per Module: 16GB.