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Four green DDR5 RDIMM sticks in antistatic tray

OWC

OWC 4R8D52R4256S 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM Dell PowerEdge

SKU CH-P94J-F62G7

A 256 GB DDR5 ECC registered RDIMM kit of four 64 GB modules at 4800 MT/s CL40, validated for Dell PowerEdge R6625, R760, R7615 and R7625 servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects memory errors
  • 1 V operation reduces power draw in dense configurations
  • Validated for Dell PowerEdge R6625 R760 R7615 R7625

256GB DDR5-4800 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5-4800 CL40 registered ECC DIMMs built to JEDEC standards. It is intended for administrators upgrading or populating Dell PowerEdge R6625, R760, R7615 and R7625 servers that require registered memory with error correction.

Fits four 288-pin DDR5 slots at 1.1V

Each module is a 2Rx4 registered DIMM without a heat spreader, drawing 1.1V and occupying a single 288-pin slot. The kit frees administrators from sourcing individual sticks and guarantees matched CL40 timing across all four modules for the supported PowerEdge platforms.

Suits Dell PowerEdge R6625 R760 R7615 R7625 owners

Buyers who need registered ECC DDR5 for these specific Dell servers can install this kit directly. It will not work in systems that require unbuffered or load-reduced DIMMs, nor in standard desktop or consumer workstation boards that lack registered memory support.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $5,294.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $20.68 per GB
Pricier than about 66% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R4256S
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell PowerEdge R6625
Dell PowerEdge R760
Dell PowerEdge R7615
Dell PowerEdge R7625

Other versions of this model

5 more in the same range

Questions about this item

What sustained-use limit appears first with four 64 GB DDR5 4800 CL40 registered modules running at 1.1 V?

The memory controller’s maximum supported capacity per channel is reached before thermal or power limits, so total installable RAM caps at the server’s rated maximum.

How much heat and power do the four 1.1 V DDR5 4800 registered DIMMs produce during all-day operation?

At 1.1 V and standard JEDEC DDR5 4800 speeds, each 64 GB 2Rx4 module draws nominal power; combined heat stays within the server’s stock airflow design.

Which Dell PowerEdge models must the buyer already own for this 256 GB kit to work?

The kit is validated for PowerEdge R6625, R760, R7615 and R7625; it will not function in unbuffered or load-reduced memory slots.

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