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Green bare circuit board DDR5 RDIMM memory module 128GB 288-pin no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 5600 ECC RDIMM 4Rx4 CL46 1.1V Lenovo SR780a V3 memory upgrade

SKU CH-6XGN-M49F5

A 128 GB DDR5 5600 registered ECC module built for the Lenovo ThinkSystem SR780a V3 server

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB single-module capacity simplifies density scaling
  • DDR5 5600 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in critical applications
  • 1V operation reduces power draw per module
  • Validated for Lenovo ThinkSystem SR780a V3 rack servers

Server-Specific DDR5 RDIMM

This NEMIX RAM module delivers 128GB of DDR5 5600 memory in a single 288-pin ECC registered DIMM. It is built for the Lenovo ThinkSystem SR780a V3 rack server and operates at 1.1V with CL46 latency. The 4Rx4 organisation suits high-density enterprise workloads.

Compatibility Check Required

Verify that your SR780a V3 supports 128GB 4Rx4 registered modules at the DDR5 5600 data rate before ordering. Consult the system service manual for approved population rules and maximum capacity per channel. The module uses major OEM Samsung, Micron or Hynix components.

Sustained Load Behaviour

Rigorous stress testing under load ensures reliability during continuous enterprise operation. ECC error correction and registered buffering maintain data integrity across extended compute cycles. The 1.1V operating voltage supports stable throughput without thermal throttling in dense server configurations.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $4,564.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.66 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR5 5600 MHz ECC RDIMM Registered Server Memory
Part numberMR44800-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items128 GB (1 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the module ship as a single 128 GB stick or as a kit of multiple sticks?

The package contains one 128 GB DDR5 5600 ECC RDIMM module; no additional sticks, brackets or cables are included.

Is the 128 GB 4Rx4 CL46 version the only capacity and rank option for this Lenovo SR780a V3 upgrade?

This listing offers the 128 GB 4Rx4 CL46 configuration; other capacities or rank layouts are separate part numbers.

What does the 5600 MT/s rating deliver when the module is installed in a ThinkSystem SR780a V3?

The module runs at DDR5 5600 (PC5 44800) with CL46 latency at 1.1 V, providing registered ECC bandwidth for the server's memory controllers.

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