A-Tech 16GB DDR4 2666MHz ECC RDIMM 288-Pin memory upgrade

A-Tech 16GB DDR4 2666MHz ECC RDIMM

This 16GB DDR4 2666MHz ECC Registered DIMM is built for the Apple iMac Pro (Retina 5K, 27-inch, Late 2017). It uses a 288-pin RDIMM form factor with 2Rx8 rank organisation and runs at 1.20V. The module targets professionals who need error-correcting memory for data integrity in supported macOS workstations.

Sustained workload behaviour

Registered buffering reduces electrical load on the memory controller, helping stability during extended multi-tasking sessions and large dataset handling. ECC circuitry detects and corrects single-bit errors in real time, preventing silent data corruption that can accumulate over long render, compile or virtualisation runs. The 2666MHz speed maintains consistent throughput without the voltage increases that can shorten component life under continuous duty.

Upgrade path for compatible iMac Pro configurations

This single 16GB module replaces or adds to the factory memory in iMac Pro model iMacPro1,1 (A1862, EMC 3144) matching Apple order number MQ2Y2LL/A. The jump is worthwhile when current capacity limits the number of concurrent virtual machines, the size of in-memory databases or the resolution of cached media frames. Systems already at the maximum supported module count or those requiring non-ECC unbuffered DIMMs cannot use this part.