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Single green DDR5 RDIMM module, black chips, no heat spreader, 288 gold pins, 64GB label

NEMIX RAM

NEMIX RAM 64GB DDR5 5600 CL46 4Rx4 ECC RDIMM memory upgrade for Lenovo ThinkSystem SR680a V3

SKU CH-S1D2-2DP8F

A 64 GB DDR5 ECC RDIMM running at 5600 MT/s with CL46 latency and 1.1 V operation, registered for Lenovo ThinkSystem SR680a V3 rack servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection guards data integrity in critical workloads
  • 64 GB capacity expands server memory for heavy multitasking
  • DDR5 5600 speed delivers high bandwidth for demanding applications
  • 4Rx4 registered design supports dense configurations on Lenovo ThinkSystem SR680a V3
  • 1 V operation reduces power draw in enterprise environments

System-specific DDR5 upgrade

This 64GB DDR5 module is built for the Lenovo ThinkSystem SR680a V3 rack server. It targets administrators who need registered ECC memory validated for that exact platform. The single-stick configuration suits incremental capacity increases.

Registered ECC with standard voltage

The module operates at 1.1V with CL46 latency and a 4Rx4 organisation. Error-correcting code and registered buffering protect data integrity in multi-socket workloads. No heat spreader is fitted, relying on server airflow for cooling.

5600 MT/s DDR5 RDIMM

The decisive specification is the DDR5 5600 (PC5-44800) speed grade in a 288-pin RDIMM form factor. Buyers whose systems require a different data rate, voltage or pin layout cannot use this part.

How it compares

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

Price $1,787.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.94 per GB
Pricier than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR44800-944K1
Total capacity64 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 items64 GB (1 × 64 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Will the 4Rx4 ECC RDIMM need replacement once the server reaches its 64GB capacity limit?

The module itself does not wear out; replacement is only needed if you exceed the slot count or want higher density than 64GB per DIMM.

Does the CL46 latency or 1.10V voltage become the bottleneck during sustained 5600 MT/s operation?

CL46 is the rated timing at 5600 MT/s, and 1.10V is the standard DDR5 voltage; neither imposes an extra limit beyond the JEDEC specification.

How much heat does a 1.10V 5600 MT/s registered DIMM produce when the server runs continuously?

Registered DDR5 at 1.10V runs within normal server thermal envelopes; the module has no heat spreader, so chassis airflow handles the heat.

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