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Green rectangular circuit board with gold edge connector and black memory chips on both sides

Micron Technology, Inc.

Micron MTA72ASS16G72LZ-3G2F1R 128GB DDR4-3200 ECC LRDIMM server RAM

SKU CH-9579-W6S5D

128GB DDR4-3200 ECC LRDIMM adds registered server memory for Xeon systems

  • ProcessorDua l / Single Intel Xeon
  • 128 GB capacity supports large datasets
  • DDR4-3200 speed feeds multi-core Xeon CPUs
  • ECC protection corrects single-bit errors automatically
  • Load-reduced DIMM lowers electrical load on memory bus
  • 16 Gbit density enables high-capacity single modules

128 GB DDR4-3200 ECC LRDIMM Server Memory

This Micron LRDIMM provides 128 GB of DDR4-3200 registered memory with ECC protection. It is built for dual- or single-socket Intel Xeon servers that require high-capacity modules. The load-reduced design lowers electrical load on the memory bus, allowing large memory footprints per channel.

Suitable For High-Density Xeon Servers.

This module suits administrators scaling virtualisation hosts, in-memory databases or compute clusters on Xeon platforms that support LRDIMM populations. It will not work in desktop or workstation boards that accept only unbuffered non-ECC DIMMs, nor in systems that cannot address 128 GB per slot.

Deciding Specification: 128 GB LRDIMM Form Factor

The single specification that determines fit is the 128 GB load-reduced DIMM form factor. Only motherboards qualified for DDR4 LRDIMM at this density can use the module; standard RDIMM-only or UDIMM-only platforms will not recognise it.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $4,693.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Processor
ProcessorDua l / Single Intel Xeon

Questions about this item

Does my motherboard need DDR4 LRDIMM slots to use this 128GB module?

Yes, the module is a DDR4-3200 LRDIMM, so the board must provide DDR4 LRDIMM sockets and support the 128GB density per slot.

Can I mix this LRDIMM with standard RDIMMs already installed in my Xeon server?

No, LRDIMMs and RDIMMs use different buffering and cannot be populated together in the same system; all slots must use the same module type.

How do I verify the module runs at 3200 MT/s after installation?

Check the BIOS memory information screen or run a tool such as dmidecode on Linux; both will report the configured speed as 3200 MT/s for each installed module.

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