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Single green 288-pin DDR5 RDIMM module without heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 5600 CL46 4Rx4 ECC RDIMM memory upgrade for Lenovo ThinkSystem SR685a V3

SKU CH-NWJE-FJJ0N

A 128 GB DDR5 5600 CL46 ECC RDIMM module built for the Lenovo ThinkSystem SR685a V3 server

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity expands server memory for demanding workloads
  • DDR5 5600 speed delivers high data throughput for intensive applications
  • ECC registered design detects and corrects errors to protect data integrity
  • 1 V operation reduces power draw in dense configurations
  • Validated for Lenovo ThinkSystem SR685a V3 rack servers

Capacity and purpose

This 128GB DDR5 registered DIMM is built for the Lenovo ThinkSystem SR685a V3 rack server. The module delivers ECC protection and registered signalling for mission-critical workloads that demand data integrity.

Upgrade path and fit

It replaces lower-capacity or slower DDR5 RDIMMs in the same platform when the application requires more memory per slot. The jump is worth it when virtualisation density or in-memory databases exceed the limits of smaller modules.

Sustained-load behaviour

Registered buffering and on-die ECC keep error rates low during continuous operation at 5600 MT/s and 1.1V. The 4Rx4 organisation spreads access across ranks to maintain throughput under prolonged multi-threaded pressure.

How it compares

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

Price $4,486.99
Pricier than about 78% 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 $35.05 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

Will the 288-pin DDR5 RDIMM fit the memory slots on the Lenovo ThinkSystem SR685a V3?

Yes, the 288-pin DDR5 RDIMM form factor matches the DIMM slots on the Lenovo ThinkSystem SR685a V3 rack server.

Is there a specific order to populate the slots when installing this 4Rx4 registered module?

Follow the Lenovo ThinkSystem SR685a V3 manual for the correct slot population sequence; registered 4Rx4 modules often require specific channels to be filled first.

Does the 1.1V operating voltage of this DDR5 module affect long-term reliability?

The 1.1V voltage is the standard DDR5 specification and is well within the design limits for continuous server operation.

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