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Four green DDR5 RDIMM modules, bare chips, no heat spreader

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 ECC RDIMM Dell PowerEdge R7625

SKU CH-Y46H-EKV5Q

Four-module kit provides 512 GB of DDR5 4800 ECC registered memory for Dell PowerEdge R7625 servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity in critical tasks
  • 10 V operation reduces power draw per module
  • Validated for Dell PowerEdge R7625 rack server compatibility

Compatible Dell PowerEdge R7625 Memory Kit

This 512GB kit contains four 128GB DDR5 RDIMM modules built for the Dell PowerEdge R7625 rack server. It targets IT teams expanding memory capacity in that specific platform. Buyers needing a different server model or a smaller capacity should look elsewhere.

Installation Notes and Common Issues

Installation follows the server's standard DIMM population rules and takes only minutes. The modules carry no heat spreader, so airflow clearance is unchanged. Mixing these registered ECC sticks with unbuffered or non-ECC memory will prevent the system from posting.

Registered ECC DDR5 4800 Specification

The kit runs at DDR5 4800 with CL40 latency at 1.10V and uses a 4Rx4 organisation across 288 pins. Registered ECC operation is mandatory for the target platform; systems that require unbuffered or non-ECC memory cannot use this kit.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $14,856.99
Pricier than about 92% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $29.02 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-744K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

How can I confirm the kit is running at DDR5 4800 with CL40 after installation?

Check the BIOS memory information or a tool such as CPU-Z; the speed should read 4800 MT/s and the CAS latency 40 cycles.

What exactly ships in the box and is anything else required?

The package contains four 128 GB 288-pin DDR5 RDIMM modules; no extra parts or cables are needed for a compatible Dell PowerEdge R7625.

Why choose the 512 GB (4 x 128 GB) 4Rx4 kit instead of a smaller capacity?

This configuration provides 512 GB total using four quad-rank 128 GB modules, maximising the R7625's supported memory capacity.

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