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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 ECC RDIMM Dell PowerEdge XR8610t XR8620t

SKU CH-JAER-EJ0JY

128 GB DDR5-4800 ECC registered server memory kit, four 32 GB modules at CL40 and 1.1 V, validated for Dell PowerEdge XR8610t and XR8620t

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity with four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity in servers
  • 1 V operating voltage for efficient power use
  • Validated for Dell PowerEdge XR8610t and XR8620t

128GB DDR5 ECC RDIMM Kit for Dell PowerEdge

This 128GB kit contains four 32GB DDR5 4800 ECC registered DIMMs built for Dell PowerEdge XR8610t and XR8620t rack servers. It targets administrators who need to expand memory capacity in these specific platforms with validated modules. The kit uses major OEM chips from Samsung, Micron or Hynix and operates at 1.1V with CL40 latency.

DDR5 4800 Registered ECC Limits

DDR5 4800 (PC5-38400) sets the maximum data rate and the registered ECC design adds a clock cycle of buffering for signal integrity. The 2Rx8 organisation and 288-pin form factor restrict use to motherboards that support registered DDR5 DIMMs and the correct pin-out. Systems requiring unbuffered, non-ECC or a different DDR generation will not accept these modules.

Tool-Free DIMM Installation and Common Errors

Installation follows the standard server DIMM procedure: open the chassis, align the notch on the 288-pin module with the slot key, press down until the ejector tabs lock, then close the chassis. The most frequent issues are mixing registered and unbuffered DIMMs, populating slots in an unsupported sequence, or forgetting to update the system BIOS to a version that recognises the full 128GB capacity.

How it compares

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

Price $3,363.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.28 per GB
Pricier than about 72% 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 numberMR38400-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 128 GB kit or combine smaller kits for my Dell PowerEdge XR8610t?

The 128 GB kit provides four matched 32 GB modules tested together for quad-channel operation on Dell PowerEdge XR8610t and XR8620t servers.

What does DDR5 4800 actually deliver inside a Dell PowerEdge XR8620t?

DDR5 4800 runs at 4800 MT/s with CL40 latency at 1.1 V, giving the rated PC5-38400 bandwidth when the server memory controller is set to that speed.

Is the 288-pin ECC RDIMM interface the limiting factor for speed on these servers?

The 288-pin RDIMM form factor carries the DDR5 4800 signal; the registered buffer and ECC logic operate within the module, so the platform memory controller determines the final speed ceiling.

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