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Single green 288-pin DDR5 RDIMM module, no heat spreader, 128GB 4Rx4 ECC registered

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM R6615 server RAM

SKU CH-HQ6W-KR6KS

128GB DDR5 4800 CL40 ECC registered RDIMM for Dell PowerEdge R6615 servers

  • Capacity128GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Capacity 128GB

Struck-through versions exist but are not stocked here.

Rank 4Rx4

  • 2Rx4
  • 4Rx4

Struck-through versions exist but are not stocked here.

  • 128GB capacity expands server memory headroom
  • DDR5 4800 speed delivers high data throughput
  • CL40 latency at 1.10V balances response and efficiency
  • ECC registered design protects data integrity under load
  • 4Rx4 288-pin RDIMM built for Dell PowerEdge R6615 compatibility

128GB DDR5 ECC RDIMM for Dell R6615

This 128GB DDR5 4800 registered DIMM is built for Dell PowerEdge R6615 rack servers. It targets IT teams expanding memory capacity in virtualization hosts, database nodes or high-density compute clusters where error correction and signal integrity are mandatory.

Upgrading from lower-capacity DDR5 RDIMMs

Replacing smaller DDR5 modules with this single 128GB stick increases total system memory without consuming extra slots. The jump is worth it when workloads exceed the current capacity ceiling and the platform supports 4Rx4 registered DIMMs at 1.1V.

Limits of the DDR5 4800 registered interface

The DDR5 4800 standard caps transfer rates at 4800 MT/s with CL40 latency at 1.1V. Registered signalling adds a cycle of buffering, so raw bandwidth is lower than unbuffered DDR5 at the same clock. Platforms must support 4Rx4 organisation and 288-pin RDIMM pinout to use this module.

Highlights

  • 128GB capacity expands server memory headroom
  • DDR5 4800 speed delivers high data throughput
  • CL40 latency at 1.10V balances response and efficiency
  • ECC registered design protects data integrity under load
  • 4Rx4 288-pin RDIMM built for Dell PowerEdge R6615 compatibility

Specifications

BrandNEMIX RAM
SeriesDell Series Server Memory
ModelDell Compatible DDR5 ECC Registered RDIMM
Part NumberMR38400-744K1
Capacity128GB
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

Other versions of this model

3 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the 288-pin DDR5 RDIMM fit the Dell PowerEdge R6615 memory slots?

Yes, the 288-pin DDR5 RDIMM is built for the Dell PowerEdge R6615 rack server and seats directly into its DDR5 RDIMM slots.

What is the correct way to seat this 128GB ECC RDIMM so the register engages?

Align the module notch with the slot key, press firmly until both side latches click, ensuring the registered buffer initialises at 1.10V.

When should the 4Rx4 ECC module be replaced if correctable errors appear?

Replace the module when the system logs show rising correctable error counts that the on-die ECC can no longer contain.

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