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Two green DDR5 RDIMM modules, bare circuit boards, 288 pins, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 ECC RDIMM Dell R660

SKU CH-J2TR-D5KCN

Two 128 GB DDR5 ECC registered DIMMs totalling 256 GB at 4800 MT/s CL40 1.1 V for Dell PowerEdge R660 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • 256GB total capacity in a 2-module kit for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for fast data throughput
  • ECC registered RDIMM design with 4Rx4 organisation for error-corrected stability
  • 10V operating voltage reduces power draw in Dell PowerEdge R660 systems
  • 288-pin DDR5 form factor using Samsung, Micron or Hynix chips for OEM-grade reliability

256GB DDR5 RDIMM kit

This kit provides 256GB of DDR5 server memory in two 128GB registered modules. It is built for the Dell PowerEdge R660 and other platforms that accept 288-pin ECC RDIMMs. IT teams use it to expand capacity for virtualisation, databases and memory-intensive workloads.

4800 MT/s with CL40 latency

Each module runs at 4800 MT/s (PC5-38400) with a CAS latency of 40 at 1.10V. The 4Rx4 organisation delivers high density per slot, so two modules fill two DIMM positions with 256GB total. Workloads that exceed this capacity will need additional slots or higher-density modules.

DDR5 ECC registered interface

The DDR5 ECC registered interface adds on-die error correction and a register to reduce electrical load on the memory bus. This improves signal integrity at speed but requires a motherboard chipset that supports registered DDR5. Systems limited to unbuffered memory or earlier DDR generations cannot use these modules.

Puntos fuertes

  • 256GB total capacity in a 2-module kit for high-density server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for fast data throughput
  • ECC registered RDIMM design with 4Rx4 organisation for error-corrected stability
  • 10V operating voltage reduces power draw in Dell PowerEdge R660 systems
  • 288-pin DDR5 form factor using Samsung, Micron or Hynix chips for OEM-grade reliability

Especificaciones

BrandNEMIX RAM
SeriesDell Series Server Memory
ModelDell Compatible DDR5 ECC Registered RDIMM
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
FeaturesDDR5 ECC Registered Server Motherboard Compatible

Preguntas sobre este artículo

Will the two 128 GB DDR5 4800 RDIMMs work with any existing DDR5 modules already installed in my PowerEdge R660?

The kit provides 256 GB as a matched 2 x 128 GB pair at DDR5 4800 CL40 1.10 V 4Rx4 registered ECC; for best stability populate remaining slots with identical spec modules.

How can I verify the kit is running at DDR5 4800 with ECC active after installation?

Enter the system BIOS or iDRAC and confirm memory speed shows 4800 MT/s, voltage 1.10 V, and ECC status enabled; then run a full memory diagnostic from the server firmware.

Does the box include only the two RDIMMs or are any cooling accessories or cables supplied?

The package contains the two 288-pin DDR5 128 GB RDIMMs only; no heat spreaders, cables or additional hardware are included.

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