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Four green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 ECC RDIMM Dell PowerEdge R660

SKU CH-Q1MR-5WEBB

A 64 GB kit of four 16 GB DDR5 4800 ECC registered DIMMs built for the Dell PowerEdge R660

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • 64 GB kit expands server capacity for demanding workloads
  • Four 16 GB modules populate channels evenly for balanced throughput
  • DDR5 4800 speed with CL40 latency delivers high bandwidth at 1.10 V
  • ECC registered design detects and corrects data errors in flight
  • Validated for Dell PowerEdge R660 rack server compatibility

Dell PowerEdge R660 DDR5 kit

This 64 GB kit contains four 16 GB DDR5 4800 registered ECC modules built for the Dell PowerEdge R660 rack server. Each module runs at 1.10 V with CL40 latency and a 1Rx8 organisation. The RDIMM form factor fits the server's 288-pin DDR5 slots.

DDR5 4800 registered ECC limits

DDR5 4800 registered ECC memory operates at 1.1 V and requires a motherboard that supports registered DIMMs with on-die ECC. The registered buffer adds one clock cycle of latency, and the platform must be qualified for PC5-38400 speeds. Mixing registered and unbuffered modules is not supported.

Verify server memory configuration

Confirm the PowerEdge R660 has four free DDR5 RDIMM slots and that the BIOS is updated to the revision Dell specifies for 4800 MT/s registered ECC modules. Check the system's maximum supported capacity per slot and total population rules before ordering.

Highlights

  • 64 GB kit expands server capacity for demanding workloads
  • Four 16 GB modules populate channels evenly for balanced throughput
  • DDR5 4800 speed with CL40 latency delivers high bandwidth at 1.10 V
  • ECC registered design detects and corrects data errors in flight
  • Validated for Dell PowerEdge R660 rack server compatibility

Specifications

BrandNEMIX RAM
SeriesDell Series Server Memory
ModelDell Compatible DDR5 ECC Registered RDIMM
Part NumberMR38400-618K4
Capacity64GB (4 x 16GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
FeaturesDDR5 ECC Registered Server Motherboard Compatible

Questions about this item

Should I buy the 4x16 GB kit or look for a different capacity for my PowerEdge R660?

The kit provides 64 GB total across four 16 GB modules, filling four slots in a balanced 1Rx8 layout that matches the R660 memory architecture.

What does the DDR5 4800 speed rating actually deliver inside the server?

The modules run at 4800 MT/s with CL40 latency at 1.10 V, giving the rated PC5-38400 bandwidth when the R660 memory controller operates at its native DDR5 4800 frequency.

Is the 288-pin RDIMM interface the limiting factor for speed or capacity in this platform?

The 288-pin registered DIMM form factor is the standard DDR5 server interface; the R660 memory controller caps the kit at 4800 MT/s, so the interface itself does not impose a lower limit.

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