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Sixteen green DDR5 RDIMM sticks, black chips, no heat spreaders, 288-pin edge connectors

NEMIX RAM

NEMIX RAM 1TB (16x64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM memory upgrade

SKU CH-Q6MP-MWQVG

A 1 TB DDR5 registered ECC kit of sixteen 64 GB modules at 4800 MT/s CL40 1.1 V for Lenovo ThinkStation PX workstations

  • Total capacity1 TB (16 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity from sixteen 64GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC registered design protects data integrity
  • 2Rx4 dual-rank architecture per module
  • 1V low voltage reduces power draw

High-density DDR5 ECC kit

This kit supplies 1TB of registered DDR5 memory across sixteen 64GB modules for Lenovo ThinkStation PX workstations. Each module runs at 4800 MT/s with CL40 latency and 1.1V operation. ECC and 2Rx4 organisation protect data integrity in demanding server workloads. The 288-pin RDIMM form factor fits compatible DDR5 slots directly.

Build integration and slot planning

Sixteen modules occupy every available DIMM channel on supported ThinkStation PX boards, so no spare slots remain for later expansion. Registered buffering reduces electrical load on the memory controller, allowing the full population without signal degradation. ECC RDIMM topology requires a workstation or server platform that explicitly supports registered memory; consumer desktop boards will not post with this kit.

Thermals and power profile

Modules operate at the standard DDR5 voltage of 1.1V and have no integrated heat spreader, relying on chassis airflow for cooling. Registered buffers add minimal overhead, keeping power draw predictable across the full 1TB array. In typical workstation workloads the kit runs within normal DDR5 thermal limits when the system provides adequate front-to-rear airflow.

How it compares

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

Price $25,070.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (16 × 64 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $25.07 per GB
Pricier than about 70% 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 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K16
Total capacity1 TB (16 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo
In the box
Included items1 TB (16 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the CL40 latency affect sustained throughput on this DDR5 4800 kit?

CL40 is the rated CAS latency at 4800 MT/s; sustained throughput depends on the workload and the Lenovo ThinkStation PX memory controller.

How much heat do the 16 modules generate at 1.10 V without spreaders?

Each 64 GB RDIMM runs at 1.10 V with no heat spreader; total thermal output scales with all 16 modules under continuous load.

Must the ThinkStation PX already have DDR5 RDIMM slots free for this 288-pin kit?

Yes — the kit uses 288-pin DDR5 RDIMM modules, so the workstation needs 16 available registered DIMM slots.

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