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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 PC5-38400 CL40 1Rx8 1.1V 288-Pin ECC RDIMM server RAM

SKU CH-8TDV-7TKRR

A 256 GB DDR5 registered ECC kit with sixteen 16 GB modules running at 4800 MT/s, CL40 and 1.1 V for Dell PowerEdge R860 servers

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from sixteen 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operating voltage
  • ECC registered RDIMM design for server reliability
  • 288-pin 1Rx8 layout validated for Dell PowerEdge R860

256GB DDR5 4800 ECC RDIMM kit

This kit provides 256GB of DDR5 server memory across 16 registered DIMMs, each rated at 4800 MT/s with CL40 latency and 1.1V operation. It targets IT teams deploying or expanding Dell PowerEdge R860 rack servers that require ECC protection and registered signal integrity for mission-critical workloads.

Verify DDR5 RDIMM slot count and population rules

Confirm the R860 has at least 16 DDR5 RDIMM slots and consult the server’s memory population guide for supported 1Rx8 configurations. The modules are 288-pin registered DIMMs without heat spreaders, so ensure airflow meets Dell’s thermal specifications for fully populated banks.

Sustained load stability with ECC and registration

All modules undergo rigorous stress testing under load to verify reliability during continuous operation. Registered buffering and on-die ECC maintain data integrity across extended compute cycles, while 1.1V operation keeps power draw consistent across the full 16-module array.

How it compares

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

Price $7,191.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $28.09 per GB
Pricier than about 89% 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 numberMR38400-618K16
Total capacity256 GB (16 × 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 the kit include all 16 DDR5 modules or must any be purchased separately?

The kit contains sixteen 16 GB DDR5 RDIMM modules for a total of 256 GB; nothing else is required to reach that capacity.

Why choose the CL40 1.10 V 1Rx8 version over other DDR5 speeds or ranks?

CL40 at 1.10 V with 1Rx8 organisation matches the Dell PowerEdge R860 qualified specification, ensuring registered ECC operation at the rated 4800 MT/s.

What does the PC5-38400 rating mean once the memory is installed in the R860?

PC5-38400 confirms each module runs at 4800 MT/s with CL40 latency, delivering the bandwidth and error-correction the R860 expects for registered DDR5 workloads.

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