A-Tech 128GB DDR4 2933MHz ECC LRDIMM 2S4Rx4 Hynix HMABAGL7C4R4N-WR Server Memory

High-density server memory

This 128GB DDR4 2933MHz ECC LRDIMM module targets administrators who need maximum capacity per slot in registered server platforms. The load-reduced design lowers electrical load on the memory controller, allowing dense population across multiple channels. It serves as a compatible replacement for the Hynix HMABAGL7C4R4N-WR part number. Builders requiring non-ECC or unbuffered memory should look elsewhere.

288-pin LRDIMM construction

The module uses a 288-pin DDR4 DIMM form factor operating at 1.20V with CL21 latency. Load-reduced buffering and an 8Rx4 3DS/TSV rank structure enable the 128GB capacity while maintaining signal integrity in heavily populated systems. ECC functionality provides error detection and correction for data-critical workloads. Systems that do not support LRDIMM or 3DS stacking cannot use this module.

Upgrades from lower-density RDIMMs

Replacing standard registered DIMMs with this 128GB LRDIMM increases per-slot capacity, reducing the total module count needed for large memory footprints. The jump is worthwhile when the platform supports load-reduced memory and the application benefits from fewer populated slots. Buyers needing higher speeds or lower latencies than 2933MHz CL21 will not find them here.