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Two green 288-pin DDR4 RDIMM sticks with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR4 3200 CL22 2Rx4 ECC RDIMM memory upgrade

SKU CH-VPSN-SXTYP

A 128 GB kit of two 64 GB DDR4 3200 CL22 2Rx4 ECC registered RDIMMs for Dell PowerEdge XR4000w, XR4510c and XR4520c servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 128GB 2X64GB

  • 128 GB total capacity with two 64 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered RDIMM protects data integrity in servers
  • 20 V low voltage reduces power draw under load
  • Validated for Dell PowerEdge XR4000w, XR4510c and XR4520c racks

Dell PowerEdge XR server memory kit

This 128GB kit contains two 64GB DDR4 3200 registered ECC RDIMMs built for Dell PowerEdge XR4000w, XR4510c and XR4520c rack servers. Each module runs at 1.20V with CL22 latency and a 2Rx4 organisation. The registered design adds a buffer that reduces electrical load on the server memory controller.

Sustained load behaviour with registered ECC

Error-correcting code detects and corrects single-bit errors during continuous operation, while the registered buffer stabilises signalling across all ranks under heavy multi-threaded workloads. Modules are stress tested under load before shipping to verify stability in mission-critical environments. The 1.20V operating voltage helps maintain consistent thermals during extended duty cycles.

Installation notes for 288-pin RDIMM slots

The 288-pin DDR4 RDIMM form factor fits directly into compatible Dell server DIMM slots without adapters. Installation typically takes minutes by following the server owner’s manual for population order and configuration rules. No heat spreader is present, so airflow across the modules must be maintained by the server chassis design. Buyers needing non-ECC or unbuffered memory for workstation boards cannot use this kit.

How it compares

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

Price $977.99
Pricier than about 61% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.64 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (2 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

How much power does the 1.2V registered kit draw when the server runs continuously?

Each module operates at 1.20V, the standard DDR4 voltage, so total draw depends on the platform's memory controller and workload rather than the kit itself.

What must the Dell PowerEdge chassis already provide for these 288-pin RDIMMs to function?

The server needs DDR4 RDIMM slots that support ECC registered memory at 3200 MT/s and a BIOS that recognises 2Rx4 64GB modules.

Will the 3200MHz CL22 modules run at their rated speed alongside slower DDR4 already installed in the same server?

The memory controller will set all populated channels to the lowest common speed; the kit will downclock to match the slower modules.

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