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Four green DDR4 RDIMM modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 ECC RDIMM Dell PowerEdge XR4000w XR4510c XR4520c memory upgrade

SKU CH-NC9W-SX9RE

128 GB DDR4-3200 ECC registered kit with four 32 GB modules for Dell PowerEdge XR4000w, XR4510c and XR4520c servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 128GB 4X32GB

  • ECC protection prevents data errors in critical workloads
  • 128GB kit with four 32GB modules expands server capacity
  • DDR4 3200 speed matches Dell PowerEdge XR4000w XR4510c XR4520c specs
  • Registered RDIMM design ensures signal integrity at scale
  • 2V operation reduces power draw in dense configurations

128GB DDR4 ECC RDIMM Kit

This NEMIX RAM kit delivers 128GB across four 32GB registered DDR4 modules rated at 3200 MT/s with CL22 latency. It targets administrators upgrading Dell PowerEdge XR4000w, XR4510c or XR4520c rack servers that require ECC registered memory for data-integrity workloads.

Straightforward DIMM installation

Each 288-pin RDIMM seats in the standard server DIMM slots; the registered buffer reduces electrical load on the memory controller. The most common issue is mixing these 2Rx8 modules with existing 1Rx4 or 1Rx8 DIMMs, which can prevent the system from posting or force a lower speed.

Verify slot count and population rules

Confirm the chassis has at least four free DDR4 RDIMM slots and consult the Dell memory population guide for the specific XR model to ensure the 2Rx8 rank configuration is supported in the desired channel arrangement.

How it compares

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

Price $1,261.99
Pricier than about 63% 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 $9.86 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the 128GB kit is running at 3200 MT/s with ECC active after installing it in a PowerEdge XR4520c?

Enter the BIOS or iDRAC and verify the memory speed shows 3200 MT/s, the total capacity reads 128 GB, and ECC status is reported as enabled for each of the four 32 GB modules.

What does the package contain and is anything else required for installation in a Dell PowerEdge XR4000w?

The box includes four 32 GB DDR4 3200 ECC RDIMM modules (part number MR25600-328K4); no extra cables, brackets or tools are needed — just open the server, populate the DIMM slots and close the chassis.

Why choose this 128 GB (4×32 GB) CL22 1.20 V kit instead of a different capacity for the XR4510c?

This kit matches the server's qualified DDR4 3200 registered ECC specification, fills four slots with 2Rx8 organisation, and delivers 128 GB total at the standard 1.20 V operating voltage.

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