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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM THINKMATE Server Memory Kit

SKU CH-EN5B-RWQ5P

Dual 64 GB DDR5 4800 ECC RDIMM kit adds 128 GB registered memory with CL40 latency at 1.1 V for Thinkmate GPU-optimised servers

  • 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 kit delivers high-density server capacity with two 64 GB modules
  • DDR5 4800 speed provides PC5-38400 bandwidth for GPU-optimised workloads
  • ECC registered RDIMM ensures data integrity and signal stability in multi-GPU Thinkmate servers
  • 2Rx4 dual-rank organisation maximises memory throughput per channel
  • Low 1.10 V operation reduces power draw in 24/7 enterprise environments

128GB DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR5 4800 registered DIMMs built for THINKMATE GPU-optimised servers. Error-correcting code and registered buffering protect data integrity in mission-critical workloads. The modules operate at 1.10V with CL40 latency and a 2Rx4 organisation.

DDR5 4800 Registered Interface

The DDR5 4800 standard delivers 38400 MT/s transfer rates, yet registered buffering adds one cycle of address-command delay that caps practical throughput in latency-sensitive code. ECC parity bits consume extra bus cycles, so sustained bandwidth falls short of the raw PC5-38400 figure. Only platforms wired for 288-pin DDR5 RDIMMs can accept these modules.

128GB Dual-Rank Capacity

Two 2Rx4 modules give 128GB total, enough for large GPU datasets, virtualization hosts or in-memory databases. Dual-rank density lets the memory controller interleave accesses across ranks, but the fixed 64GB per slot leaves no room to grow beyond the board's maximum slot count. Buyers who need more capacity per channel must choose higher-density modules.

How it compares

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

Price $3,252.99
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 $25.41 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 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

Should I pick the 2×64 GB kit or look for a different capacity?

This kit provides 128 GB total using two 64 GB modules, which matches the maximum per-slot capacity supported by the compatible THINKMATE GPU-optimised servers.

What does the 4800 MT/s rating deliver in a running system?

The modules operate at DDR5 4800 (PC5-38400) with CL40 latency and 1.10 V, giving the rated throughput and error-corrected stability for the qualified THINKMATE platforms.

How does the 288-pin RDIMM interface limit real-world use?

The 288-pin DDR5 RDIMM form factor with registered 2Rx4 organisation and ECC only fits server motherboards designed for registered DDR5 memory, so it cannot be used in desktop or unbuffered platforms.

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