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Green rectangular DDR5 memory module with gold edge contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM THINKMATE 511E-WR 521E-WR memory upgrade

SKU CH-6FBR-8AP00

A 128 GB DDR5 4800 CL40 1.1 V 4Rx4 ECC registered DIMM validated for Thinkmate 511E-WR and 521E-WR servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity scales memory-heavy workloads
  • DDR5 4800 MT/s throughput accelerates data-intensive tasks
  • ECC registered design protects data integrity under load
  • 10 V operation reduces server power draw
  • Validated for ThinkMate 511E-WR and 521E-WR systems

128 GB DDR5 4800 ECC RDIMM

This single 128 GB DDR5 4800 module delivers registered ECC memory for THINKMATE Supermicro SuperServer 511E-WR and 521E-WR platforms. It operates at 1.1 V with a CL40 latency and a 4Rx4 organisation across 288 pins. The RDIMM form factor ensures signal integrity in multi-module server configurations.

Upgrade from lower-capacity or non-ECC DDR5 RDIMMs

Replacing smaller registered DIMMs with this 128 GB stick increases total memory bandwidth and allows larger datasets to remain in RAM. The jump is worthwhile when workloads exceed the capacity of existing modules or when error correction becomes mandatory for data integrity.

Suited for THINKMATE 511E-WR

IT teams managing these specific SuperServer models gain a validated, stress-tested memory option. Builders using consumer motherboards, non-registered DIMM slots, or systems requiring different speeds, voltages, or form factors should look elsewhere.

How it compares

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

Price $4,109.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.11 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 lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K1
Total capacity128 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 items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 288-pin DDR5 RDIMM fit the memory slots in my THINKMATE 511E-WR or 521E-WR server?

Yes, the module uses the standard 288-pin DDR5 RDIMM form factor required by the THINKMATE 511E-WR and 521E-WR SuperServer platforms.

What is the correct way to install this 128GB registered ECC module, and what step is often missed?

Power down the server, open the chassis, align the module notch with the slot key, press firmly until both retention clips lock, then verify in BIOS that the 4Rx4 rank and CL40 timing are detected.

When should I expect to replace this DDR5 ECC RDIMM in a production server?

The module has no moving parts and runs at 1.1V; replacement is only needed if memory diagnostics report correctable or uncorrectable ECC errors over time.

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