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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 1.1V ECC RDIMM 4Rx4 THINKMATE Server Memory Upgrade

SKU CH-KM9R-7FSQ7

Adds 512 GB of DDR5 ECC registered memory in four 128 GB modules running at 4800 MT/s with CL40 latency

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512GB capacity handles massive server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design prevents data corruption errors
  • 1V operation reduces system power consumption
  • 4Rx4 quad-rank layout maximises density per module

512GB DDR5 4800 ECC RDIMM kit

This 512GB kit contains four 128GB DDR5 4800 registered DIMMs with ECC and a CL40 latency. It is built for Thinkmate TWX-XS8-24S4 and TWX-XS8-14S4 tower servers that require registered memory. The modules operate at 1.1V and use a 4Rx4 organisation. IT professionals choose this kit for mission-critical workloads needing maximum capacity and error correction.

Registered DDR5 for Thinkmate towers

Each 288-pin RDIMM plugs directly into the server's DDR5 slots; the registered buffer reduces electrical load on the memory controller. No heat spreaders are fitted, so airflow in the chassis must handle cooling. The kit frees all four channels for a balanced population without mixing capacities. Compatibility is validated for the listed Thinkmate models only.

Four-rank density for heavy workloads

The 4Rx4 layout delivers 512GB total capacity, supporting large databases, virtualisation clusters and in-memory analytics. At DDR5 4800 the bandwidth reaches PC5-38400, sustaining high-throughput tasks. Systems needing more than 512GB or higher frequencies will exceed this kit's limits. Buyers requiring unbuffered UDIMMs or non-ECC memory cannot use these modules.

How it compares

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

Price $14,990.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.28 per GB
Pricier than about 83% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K4
Total capacity512 GB (4 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the CL40 latency at 4800 MT/s become the bottleneck during sustained heavy workloads?

CL40 is the rated CAS latency for these DDR5 4800 modules; sustained throughput will be limited by that timing combined with the 4Rx4 organisation.

How much heat and power should I expect from four 128 GB registered DIMMs running continuously?

Each module operates at 1.10 V without a heat spreader; total power scales with the 512 GB capacity and registered buffering under constant load.

Which Thinkmate tower models must I already own for this 288-pin DDR5 RDIMM kit to work?

The kit is validated for Thinkmate TWX-XS8-24S4 and TWX-XS8-14S4 tower servers that accept DDR5 4800 ECC RDIMM memory.

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