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Four green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 5600 CL46 ECC RDIMM Lenovo SR680a V3 memory upgrade

SKU CH-6ZM8-4D1VE

A 128 GB kit of four 32 GB DDR5 5600 CL46 ECC registered DIMMs built for the Lenovo ThinkSystem SR680a V3 server

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity for demanding server workloads
  • DDR5 5600 speed with CL46 latency for responsive data access
  • ECC registered design protects data integrity in critical applications
  • 1 V operation reduces power draw per 32 GB module
  • Validated for Lenovo ThinkSystem SR680a V3 rack servers

Lenovo SR680a V3 memory kit

This 128GB kit contains four 32GB DDR5 modules built for the Lenovo ThinkSystem SR680a V3 rack server. It delivers registered ECC memory that meets the platform's requirements for data integrity and stability. System administrators upgrading this specific server model can use the kit to reach the full 128GB capacity across four slots.

DDR5 5600 registered ECC constraints

The modules run at 5600 MT/s with a CAS latency of CL46 and operate at 1.1V. Registered buffering adds a clock cycle to command timing, which is mandatory for this server platform. The 1Rx4 organisation and 288-pin DDR5 form factor limit use to systems that support registered DDR5 RDIMMs at this speed and voltage.

1Rx4 registered ECC RDIMM

Each 32GB module uses a single-rank x4 chip configuration that determines how the memory controller addresses the kit. This rank structure and the registered ECC design are the decisive factors for compatibility with the SR680a V3. Servers requiring different rank counts, unbuffered DIMMs or non-ECC memory cannot use this kit.

How it compares

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

Price $4,213.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.92 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 numberMR44800-314K4
Total capacity128 GB (4 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items128 GB (4 × 32 GB) DDR5 5600 MHz PC5-44800 1Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 4-module 128GB kit or buy single 32GB sticks to reach the same total?

The kit ships as four matched 32GB modules tested together for the Lenovo ThinkSystem SR680a V3, so you install all four at once without mixing batches.

What does the 5600 MT/s rating actually deliver inside the SR680a V3?

The modules run at DDR5 5600 with CL46 latency at 1.1V, giving the server its rated memory bandwidth when all slots are populated per Lenovo's memory population rules.

Is the 288-pin DDR5 RDIMM interface the limiting factor for speed or capacity in this server?

The 288-pin RDIMM form factor is the standard for this platform; the kit's 5600 MT/s CL46 specification matches the SR680a V3's supported memory speed, so the interface does not impose a lower cap.

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