NEMIX RAM 128GB (2x64GB) DDR4 2666 ECC LRDIMM iMac Pro 2017-2021 memory upgrade

Compatible iMac Pro Memory Kit

This 128GB kit contains two 64GB DDR4 2666 LRDIMM modules built for Apple iMac Pro models released between 2017 and 2021. The memory operates at 1.20V with CL19 latency and includes ECC error correction for data integrity. It targets professionals who need maximum capacity in the iMac Pro's four available slots.

Straightforward Slot Installation

The 288-pin LRDIMMs insert into the iMac Pro's memory compartment after removing the access door, a process Apple designed for user upgrades. No tools beyond a soft cloth are required, and the modules seat with a firm press until the ejectors click. The main risk is seating a module unevenly, which causes a boot failure or reduced capacity; reseating both sticks usually resolves it.

Suits High-Capacity Workloads

This kit suits video editors, 3D artists and developers who run large datasets or virtual machines on an iMac Pro and need the full 128GB configuration. Buyers who only need a modest increase or who use standard DIMM platforms should look elsewhere, as LRDIMMs are not interchangeable with UDIMMs or RDIMMs and this speed is specific to the iMac Pro architecture.