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Four green DDR5 RDIMM sticks, bare chips, 288-pin, 128GB kit

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5 4800 CL40 2Rx8 ECC RDIMM Dell PowerEdge XE8640

SKU CH-JPNW-0WG9T

128 GB of DDR5-4800 ECC registered memory in four 32 GB modules with CL40 latency for Dell PowerEdge XE8640 servers

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 10 V operation reduces power draw
  • Validated for Dell PowerEdge XE8640 rack server

128 GB DDR5 4800 ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR5 4800 ECC registered DIMMs built for the Dell PowerEdge XE8640 rack server. Each module runs at 1.1 V with a CAS latency of CL40 and uses a 2Rx8 organisation. The registered design adds a buffer that reduces electrical load on the server memory controller.

DDR5 4800 bandwidth and registered topology

The DDR5 4800 interface provides a peak transfer rate of PC5-38400 while the registered architecture limits the number of ranks the memory controller must drive directly. This topology supports high-density population but does not allow mixing with unbuffered or non-ECC modules in the same system.

288-pin RDIMM form factor decides fit

Only systems that accept 288-pin DDR5 RDIMMs with ECC and registered signalling can use this kit. Desktop boards, laptops or workstations requiring UDIMM or SO-DIMM formats cannot install these modules.

Highlights

  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 10 V operation reduces power draw
  • Validated for Dell PowerEdge XE8640 rack server

Specifications

BrandNEMIX RAM
SeriesDell Server/Workstation Compatible Series Memory
ModelDell DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-328K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemDell
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 128 GB kit of four 32 GB modules or a different capacity for my Dell PowerEdge XE8640?

This kit provides 128 GB total across four 32 GB RDIMMs, matching the XE8640's supported DDR5 4800 registered ECC configuration.

What does the DDR5 4800 speed rating deliver once the modules are installed in the server?

The modules run at 4800 MT/s with CL40 latency at 1.10 V, providing the rated PC5-38400 bandwidth for registered ECC workloads.

How does the 288-pin DDR5 RDIMM interface affect compatibility and performance limits?

The 288-pin registered DIMM format fits the XE8640's DDR5 RDIMM slots, operates at 1.10 V with on-die ECC, and is capped at the platform's 4800 MT/s maximum.

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