We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR5 RDIMM modules with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 PC5-38400 CL40 1.1V 288-Pin ECC RDIMM Dell PowerEdge R6615

SKU CH-XW20-1YVS1

A 256 GB kit of two 128 GB DDR5 4800 ECC registered RDIMMs at CL40 and 1.1 V for the Dell PowerEdge R6615

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Capacity 256GB (2 x 128GB)

Struck-through versions exist but are not stocked here.

Rank 4Rx4

  • 2Rx4
  • 4Rx4

Struck-through versions exist but are not stocked here.

  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity under load
  • CL40 latency at 1.1 V operating voltage
  • Validated for Dell PowerEdge R6615 rack servers

256GB DDR5 4800 ECC RDIMM Kit

This 256GB kit contains two 128GB DDR5 4800 registered DIMMs with CL40 timing and 1.1V operation. It is built for Dell PowerEdge R6615 rack servers that require ECC registered memory. The modules use 4Rx4 organisation and 288-pin DDR5 form factor.

Verify DDR5 RDIMM slots and 4Rx4 support

Before ordering, confirm the server has available 288-pin DDR5 RDIMM slots and that the platform accepts 4Rx4 registered modules at 4800 MT/s. Check the system manual for maximum capacity per slot and population rules for dual-rank or quad-rank configurations. Ensure the BIOS is current enough to recognise 128GB density modules.

No heat spreaders or extra software included

The modules ship without heat spreaders, relying on server chassis airflow for cooling. No additional software, drivers or configuration utilities are bundled; installation is a hardware-only procedure. The kit is covered by the manufacturer’s lifetime replacement warranty and US-based technical support.

Highlights

  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity under load
  • CL40 latency at 1.1 V operating voltage
  • Validated for Dell PowerEdge R6615 rack servers

Specifications

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

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 kit include two 128 GB DDR5 RDIMMs or do I need to buy them separately?

The kit contains two 128 GB DDR5 4800 RDIMMs for a total of 256 GB; nothing else is required for installation.

Should I choose the 256 GB CL40 kit or a lower-capacity option for the PowerEdge R6615?

Select the 256 GB kit when the workload needs maximum memory capacity; choose a smaller kit only if the server will run lighter workloads.

What does the 4800 MT/s rating mean once the modules are installed in the R6615?

The modules run at 4800 MT/s with CL40 latency at 1.10 V, delivering the rated PC5-38400 bandwidth in the server.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.