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Two green DDR5 RDIMM sticks in a clear plastic tray

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 5600 CL46 2Rx4 ECC RDIMM Lenovo SR680a V3 memory upgrade

SKU CH-T1QS-S9HEQ

A 128 GB DDR5 5600 ECC registered dual-rank kit built for Lenovo ThinkSystem SR680a V3 servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB kit (2×64GB) scales memory capacity for Lenovo SR680a V3
  • DDR5 5600 (PC5-44800) rated speed feeds data faster to CPU cores
  • ECC RDIMM registered design corrects errors and buffers signals for server stability
  • CL46 CAS latency at 1.1V delivers responsive access with standard power draw
  • 2Rx4 288-pin modules built with major OEM DRAM chips for enterprise reliability

Lenovo SR680a V3 DDR5 kit

This 128GB kit uses two 64GB DDR5 RDIMMs built for the Lenovo ThinkSystem SR680a V3. Registered ECC modules suit enterprise workloads that demand data integrity and server-grade stability. System-specific validation targets the exact platform without guesswork.

288-pin DDR5 registered install

The 288-pin RDIMM form factor slots into standard DDR5 server sockets. Registered buffering adds a clock cycle, so the memory controller must support registered DIMMs. Mixing with unbuffered modules will prevent boot; follow the server manual for population order.

Sustained CL46 1.1V operation

At CL46 latency and 1.1V the modules run within JEDEC limits for continuous server duty. ECC corrects single-bit errors during long compute passes while registered signalling keeps the bus stable under full population. No heat spreader means airflow must meet chassis specifications.

How it compares

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

Price $4,170.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.59 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 numberMR44800-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items128 GB (2 × 64 GB) DDR5 5600 MHz PC5-44800 2Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How can I verify the 128GB kit is running at 5600 MT/s with CL46 after installation?

Enter the server BIOS or use a tool such as CPU-Z to confirm the memory speed reads 5600 MT/s and the CAS latency shows 46.

What exactly ships in the box and do I need any extra parts for the SR680a V3?

The package contains two 64GB DDR5 5600 ECC registered RDIMMs; no additional components are required for installation in the compatible Lenovo server.

Which capacity or rank option should I pick if I want the 2Rx4 configuration listed here?

This kit provides 128GB total as two 64GB modules in a 2Rx4 organisation, matching the specification for the SR680a V3.

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