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Four green 288-pin DDR5 RDIMM modules in a 512GB kit

NEMIX RAM

NEMIX RAM 512GB (4 x 128GB) DDR5 4800 PC5-38400 4Rx4 1.1V 288-Pin ECC RDIMM for Dell PowerEdge R660

SKU CH-ZS5W-APVX8

A 512 GB DDR5 ECC registered kit of four 128 GB modules at 4800 MT/s CL40, built for the Dell PowerEdge R660

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • 512 GB total capacity scales virtualization and database workloads
  • Four 128 GB modules fill Dell PowerEdge R660 slots efficiently
  • DDR5 4800 speed with CL40 latency accelerates data throughput
  • ECC registered design detects and corrects errors for uptime
  • 1 V operation reduces power draw in dense server racks

Dell PowerEdge R660 server memory kit

This 512 GB kit contains four 128 GB DDR5 RDIMM modules built for the Dell PowerEdge R660 rack server. Registered ECC design targets enterprise workloads that demand data integrity and sustained throughput.

DDR5 4800 registered ECC limits

Registered buffering and ECC add latency overhead that caps maximum clock headroom compared with unbuffered alternatives. The 4Rx4 organisation further restricts rank-per-channel density on platforms with strict memory-controller limits.

4Rx4 rank configuration decides fit

Each module presents four ranks in a x4 arrangement, so the server memory controller must support 4Rx4 populations at full speed. Systems limited to dual-rank or single-rank per slot will not recognise the full 512 GB capacity.

Highlights

  • 512 GB total capacity scales virtualization and database workloads
  • Four 128 GB modules fill Dell PowerEdge R660 slots efficiently
  • DDR5 4800 speed with CL40 latency accelerates data throughput
  • ECC registered design detects and corrects errors for uptime
  • 1 V operation reduces power draw in dense server racks

Specifications

BrandNEMIX RAM
SeriesDell Series Server Memory
ModelDell Compatible DDR5 ECC Registered RDIMM
Part NumberMR38400-744K4
Capacity512GB (4 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

Questions about this item

Should I buy the 512GB kit as four 128GB modules or look for a different capacity?

The kit is sold as four 128GB RDIMMs totalling 512GB; each module is a 4Rx4 DDR5 4800 part so the capacity is fixed for this part number.

What does the 4800 MT/s rating actually deliver inside a PowerEdge R660?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V, giving the maximum standard throughput the R660 memory controller supports for this rank configuration.

Is the 288-pin RDIMM interface the same as a standard DDR5 DIMM and what limits apply?

Yes, it uses the standard 288-pin DDR5 RDIMM form factor with ECC and registered buffering; the 4Rx4 organisation caps the maximum rank count per channel on the R660.

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