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Two green DDR5 RDIMM modules with black chips no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 ECC RDIMM CL40 2Rx4 1.1V for THINKMATE SuperServer 511E-WR 521E-WR

SKU CH-3G3X-NQR78

128 GB DDR5 4800 ECC registered dual-rank kit in two 64 GB modules for ThinkMate SuperServer 511E-WR and 521E-WR

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity in servers
  • 2Rx4 dual-rank organisation with CL40 latency
  • 1 V operation on 288-pin DDR5 form factor

128GB DDR5 4800 ECC RDIMM kit

This 128GB kit contains two 64GB DDR5 4800 registered DIMMs with ECC and a CAS latency of CL40. It is built for THINKMATE SuperServer 511E-WR and 521E-WR systems that require registered server memory. Modules operate at 1.1V and use a 2Rx4 organisation.

Compatibility check before ordering

Verify that your motherboard accepts 288-pin DDR5 RDIMMs and supports registered ECC modules at 4800 MT/s. Confirm the platform can address 64GB per slot and that the BIOS is current enough for this density. Ensure the server chassis has enough DIMM slots free for both modules.

Build integration and capacity gains

The kit plugs directly into standard 288-pin DDR5 RDIMM slots and draws 1.1V from the platform. No heat spreaders are fitted, so airflow across the modules must be maintained by the server's cooling design. Installing the pair adds 128GB of registered ECC capacity, freeing the system from lower-density configurations.

How it compares

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

Price $3,354.99
Pricier than about 74% 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 $26.21 per GB
Pricier than about 72% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 systemsTHINKMATE
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include both 64 GB modules or must the second stick be ordered separately?

The kit contains two 64 GB modules for a total of 128 GB, so nothing else needs to be purchased.

Should I choose the 2Rx4 organisation or a different rank for the ThinkMate SuperServer 511E-WR and 521E-WR?

The 2Rx4 organisation is the one qualified for these SuperServer models and matches the memory controller layout.

What does the 4800 MT/s rating mean once the modules are installed in the server?

The memory will run at 4800 MT/s with CL40 latency at 1.10 V, delivering the rated PC5-38400 bandwidth.

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