(*) 16.0GB Apple-Hynix Factory Original PC4-21300 2666MHz DDR4 ECC-R 288-Pin RDIMM Memory Module

(*) 16.0GB Apple-Hynix Factory Original PC4-21300 2666MHz DDR4 ECC-R 288-Pin RDIMM Memory Module. For Mac Pro (2019, 8-core model), iMac Pro (2017) and PC/Servers that utilize DDR4 2666MHz ECC-R RDIMMs. *Used, OWC Tested*