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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM Dell XR8610t/XR8620t memory upgrade

SKU CH-QNT2-TSYA8

Registered ECC DDR5 kit adds 256 GB across four 64 GB modules at 4800 MT/s CL40 for Dell PowerEdge XR8610t and XR8620t servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design protects data integrity under load
  • 2Rx4 organisation with CL40 latency at 1.1 V
  • Validated for Dell PowerEdge XR8610t and XR8620t rack servers

Dell PowerEdge XR8610t and XR8620t memory kit

This 256GB kit contains four 64GB DDR5 4800 registered ECC RDIMMs built for Dell PowerEdge XR8610t and XR8620t rack servers. The modules run at 1.1V with CL40 latency and a 2Rx4 organisation. They are designed for IT teams who need maximum capacity in these specific Dell platforms.

Replacing lower-capacity DDR5 RDIMMs

Upgrading from smaller registered modules is worthwhile when workloads demand more memory channels filled at the native 4800 MT/s speed. The jump makes sense for virtualisation hosts, database nodes or high-density compute clusters that hit capacity limits before they hit bandwidth limits. Systems already running at the full 256GB population cannot add more memory without changing platform.

DDR5 4800 registered ECC limits

The DDR5 4800 standard caps transfer rate at 4800 MT/s and requires registered DIMMs with on-die ECC for this server class. Voltage is fixed at 1.1V and the 288-pin RDIMM form factor prevents use in unbuffered or UDIMM slots. Maximum capacity per module is 64GB at this speed, so further density increases need a newer memory generation.

How it compares

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

Price $6,525.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.49 per GB
Pricier than about 70% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these 288-pin DDR5 RDIMM modules fit the Dell PowerEdge XR8610t and XR8620t rack servers?

Yes, the kit is validated for Dell PowerEdge XR8000 series including the XR8610t and XR8620t models.

What is the correct order for installing the four 64 GB modules to enable quad-channel operation?

Populate the memory slots according to the Dell owner's manual channel layout; the common mistake is placing modules in the wrong bank sequence.

How often should the ECC registered RDIMMs be stress-tested after deployment in a production server?

Run a full memory diagnostic at initial bring-up and after any firmware update; periodic re-tests are recommended during scheduled maintenance windows.

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