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NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 288-Pin ECC RDIMM Dell PowerEdge R760xa Memory Upgrade

SKU CH-65S5-33JKA

Adds 512GB of DDR5 4800 ECC registered memory in four 128GB modules for the Dell PowerEdge R760xa

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity across four 128 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operation reduces power draw in dense configurations
  • Validated for Dell PowerEdge R760xa rack server compatibility

512GB DDR5 RDIMM kit for Dell PowerEdge R760xa

This 512GB kit contains four 128GB DDR5 4800 RDIMM modules built for the Dell PowerEdge R760xa. Each module is ECC registered with a 4Rx4 organisation and runs at 1.1V. It targets administrators who need maximum supported capacity in that specific platform.

DDR5 4800 registered ECC limits

The DDR5 4800 standard sets the baseline transfer rate at PC5-38400 with a CAS latency of 40 for registered DIMMs. Registered buffering adds one clock cycle of command delay, which is mandatory for multi-DIMM server configurations. ECC correction handles single-bit errors but cannot repair multi-bit failures.

4Rx4 rank density decides fit

The 4Rx4 rank structure places four logical ranks on each 128GB module, a density the R760xa memory controller must explicitly support. If the platform firmware does not recognise 4Rx4 RDIMMs at this capacity, the system will not post or will report reduced memory. Verify the server qualification list before purchase.

How it compares

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

Price $14,194.99
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 $27.72 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell 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 systemsDell
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

Should I choose the 512GB kit or a smaller capacity for my Dell PowerEdge R760xa?

The 512GB kit provides four 128GB modules for maximum density; choose a smaller kit only if your workload does not require the full capacity.

What does the 4800MHz speed mean once installed in the R760xa?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency, delivering the rated bandwidth the server platform supports.

Is the 288-pin DDR5 RDIMM interface compatible with standard DDR5 slots?

The 288-pin RDIMM form factor fits DDR5 RDIMM slots; the registered design and ECC function require a server chipset that supports registered memory.

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