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Two green DDR5 RDIMM modules with gold contacts, no heat spreader

OWC

OWC 32GB (2x16GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge R6625 R760 R7615 R7625

SKU CH-DJ5Q-FWSVD

32 GB dual-channel DDR5 4800 CL40 ECC registered kit for Dell PowerEdge R6625, R760, R7615 and R7625 servers

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in critical workloads
  • 32GB kit (2×16GB) expands server capacity for demanding applications
  • DDR5 4800 CL40 at 1.1V delivers efficient high-speed performance
  • Validated for Dell PowerEdge R6625, R760, R7615, R7625
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-grade DDR5 ECC kit

This OWC kit supplies 32 GB of DDR5 4800 memory as two 16 GB registered DIMMs. Each module runs at CL40 latency and 1.1 V, delivering error-correcting code protection for data integrity. The 288-pin RDIMM form factor is built for Dell PowerEdge R6625, R760, R7615 and R7625 servers. It is not compatible with standard desktop platforms.

Registered DIMM installation requirements

The modules require motherboard slots that support registered ECC DDR5 and cannot be mixed with unbuffered or load-reduced memory. Populating both DIMMs in matched channels lets the memory controller operate at the rated 4800 MT/s speed. No heat spreaders are fitted, so airflow across the slots must be maintained by the server chassis design. The kit frees additional slots for future capacity expansion.

Upgrade from lower-capacity or slower DDR5

Replacing smaller RDIMMs or slower DDR5 modules with this 32 GB kit raises total memory bandwidth and reduces correctable error overhead. The jump is worth it when virtualization density, database caching or ECC-dependent workloads exceed the current memory ceiling. Buyers who need consumer DDR5, non-ECC DIMMs or higher frequencies than 4800 MT/s should look elsewhere.

Highlights

  • ECC registered design protects data integrity in critical workloads
  • 32GB kit (2×16GB) expands server capacity for demanding applications
  • DDR5 4800 CL40 at 1.1V delivers efficient high-speed performance
  • Validated for Dell PowerEdge R6625, R760, R7615, R7625
  • JEDEC and RoHS compliant for warranty-safe upgrades

Specifications

BrandOWC
Part Number4R8D51R8032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo
Compatible SystemDell PowerEdge R6625
Dell PowerEdge R760
Dell PowerEdge R7615
Dell PowerEdge R7625

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Questions about this item

Will the 1.1V DDR5 4800 modules overheat when the Dell PowerEdge R760 runs at full load all day?

The kit runs at the standard 1.1V JEDEC voltage with no heat spreader; registered ECC RDIMMs of this density typically stay within thermal limits inside Dell PowerEdge chassis airflow.

Does the CL40 latency limit throughput on sustained write-heavy workloads on the R7625?

CL40 is the rated CAS latency at DDR5 4800; real-world throughput depends on the server's memory controller and population rules, not on the modules alone.

Which Dell PowerEdge models must I already own for this 2x16GB RDIMM kit to work?

The kit is validated for Dell PowerEdge R6625, R760, R7615 and R7625 servers that accept 288-pin DDR5 ECC registered DIMMs.

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