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Two green DDR5 RDIMM modules, black chips, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 4Rx4 ECC RDIMM Dell R760xa

SKU CH-EZVD-N03AA

256GB dual-rank DDR5 ECC RDIMM kit running at 4800 MT/s CL40 for Dell PowerEdge R760xa servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256GB kit expands server capacity with two 128GB modules
  • DDR5 4800 speed handles data-intensive workloads at PC5-38400 bandwidth
  • CL40 latency and 1.10V voltage balance responsiveness with efficiency
  • ECC registered 4Rx4 design protects data integrity in mission-critical environments
  • 288-pin RDIMM form factor validated for Dell PowerEdge R760xa compatibility

Dell PowerEdge R760xa server memory kit

This 256GB kit contains two 128GB DDR5 RDIMMs validated for the Dell PowerEdge R760xa rack server. Each module is registered and ECC-enabled for enterprise stability. IT teams use it to expand memory capacity in compatible Dell platforms.

4Rx4 rank configuration determines slot population

The modules use a 4Rx4 organisation running at DDR5 4800 with CL40 latency. This rank structure affects how many DIMMs the server can accept per channel and must match the platform's qualified vendor list. Verify the R760xa memory population rules before ordering.

Registered ECC design sustains data integrity

The 1.10V registered modules include on-die ECC and parity to correct single-bit errors during continuous operation. Stress testing at rated speed confirms stability for virtualisation, database and HPC workloads that run for extended periods.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $8,385.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $32.76 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-744K2
Total capacity256 GB (2 × 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
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

What does the 4800 MT/s rating mean once the modules are installed in a Dell PowerEdge R760xa?

The server will run the memory at 4800 MT/s, delivering the full PC5-38400 bandwidth for each 128 GB module.

How does the DDR5 RDIMM interface limit performance in this configuration?

The registered DDR5 design adds one cycle of command buffering, but the R760xa memory controller supports the full 4800 MT/s data rate with CL40 latency.

Will these 288-pin modules fit the R760xa memory slots without a heat spreader?

Yes, the 288-pin RDIMM form factor matches the server slots exactly, and the low-profile design without a spreader clears standard CPU heatsinks.

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