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Four green DDR5 RDIMM modules in a kit, bare black chips, no heat spreader, 288 pins, 64GB total

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 1Rx8 ECC RDIMM server RAM

SKU CH-MP72-8AFTX

Four 16 GB DDR5 modules deliver 64 GB of ECC registered memory at 4800 MT/s with CL40 latency and 1.1 V operation

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 64GB (4 x 16GB)

Rank 1Rx8

  • 64 GB total capacity across four 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for server data integrity
  • CL40 latency at 1.1 V operating voltage
  • Validated for Dell PowerEdge R760xs rack servers

Server DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 64GB of DDR5 memory in a matched set of four 16GB registered DIMMs. Each module runs at 4800 MT/s with CL40 latency at 1.1V and includes on-die ECC for data integrity in server workloads.

Suited for Dell PowerEdge R760xs upgrades

The kit targets administrators expanding memory in the Dell PowerEdge R760xs rack server where registered ECC DDR5 is required. Builders needing unbuffered UDIMMs, non-ECC modules or a different form factor should select alternative memory.

Verify DDR5 RDIMM slot count and population rules

Confirm the motherboard has four available 288-pin DDR5 RDIMM slots and review the server documentation for approved population order and maximum supported capacity per channel before installation.

How it compares

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

Price $1,619.99
Pricier than about 84% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $25.31 per GB
Pricier than about 86% 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 numberMR38400-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Does my server need DDR5 slots and registered ECC support to run this 64GB kit?

Yes. The kit uses 288‑pin DDR5 RDIMMs at 4800 MT/s, 1.10 V, CL40, 1Rx8 with ECC and registered buffering, so the motherboard must provide DDR5 RDIMM slots that accept registered ECC modules.

Can I keep existing DDR5 4800 CL40 1Rx8 ECC RDIMMs and add this 4×16GB kit alongside them?

If the installed modules are also DDR5 4800 CL40 1Rx8 ECC RDIMMs at 1.10 V, they can usually share the same memory channels; matching speed, latency, rank, voltage and ECC type lets the server train all DIMMs together.

How do I confirm the kit is running at 4800 MT/s with ECC active after installation?

Enter the BIOS/UEFI or use a tool such as dmidecode, lshw or CPU‑Z and verify each DIMM shows 4800 MT/s (PC5‑38400), CL40, 1.10 V, 1Rx8, ECC enabled and registered status.

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