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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 1.1V ECC RDIMM Dell PowerEdge R660

SKU CH-KMMA-HTXRP

Eight-module 128 GB DDR5 kit at 4800 MT/s with ECC registered RDIMMs for Dell PowerEdge R660

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 latency with 1.10 V operating voltage
  • ECC registered RDIMM for error-correcting server reliability
  • Validated for Dell PowerEdge R660 rack server compatibility

Dell PowerEdge R660 Memory Kit

This 128 GB kit contains eight 16 GB DDR5 RDIMM modules built for the Dell PowerEdge R660 server. Registered ECC design with 1Rx8 organisation protects data integrity in mission-critical workloads. Modules run at 4800 MT/s with CL40 latency at 1.1 V.

Suited for R660 capacity upgrades

IT teams expanding a PowerEdge R660 to 128 GB across eight slots will match the platform’s validated configuration. Systems requiring a different module count, lower density per DIMM, or non-ECC memory should select another kit.

Registered ECC with 1Rx8 organisation

The single-rank registered ECC layout is the specification that determines compatibility with the R660 memory controller. Verify the server’s qualified-vendor list calls for 1Rx8 RDIMMs before ordering.

How it compares

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

Price $3,468.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $27.10 per GB
Pricier than about 88% 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 numberMR38400-618K8
Total capacity128 GB (8 × 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

Questions about this item

Does this kit need a Dell PowerEdge R660 motherboard with 288-pin DDR5 slots to operate?

Yes, the 8 x 16 GB modules use the 288-pin DDR5 RDIMM form factor and are validated for the PowerEdge R660 platform.

Can I mix these 1Rx8 CL40 modules with existing DDR5 RDIMMs of a different rank or latency in the same server?

Mixing ranks or CAS latencies is not recommended; the R660 memory controller expects identical 1Rx8 CL40 modules for stable operation.

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

Check the system BIOS or iDRAC interface — it will report 4800 MT/s, CL40, 1.10 V and ECC enabled for each of the eight modules.

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