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Two green DDR5 RDIMM modules with gold contacts and black chips

OWC

OWC 64GB (2x32GB) DDR5 4800 CL40 ECC Registered RDIMM Dell PowerEdge C6600 C6620 MX760C R660 R6615

SKU CH-BHTR-3T2EM

ECC registered DDR5 4800 CL40 kit adds 64 GB to Dell PowerEdge C6600, C6620, MX760C, R660 and R6615 servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 64GB (2 x 32GB)

  • 64 GB capacity with two 32 GB modules for high-density server memory
  • DDR5 4800 speed at CL40 latency delivers fast data throughput for demanding workloads
  • ECC registered design detects and corrects errors to protect data integrity in critical systems
  • 1 V operation reduces power draw and heat in dense Dell PowerEdge deployments
  • Validated for PowerEdge C6600 C6620 MX760C R660 and R6615 ensuring drop-in compatibility

Dell PowerEdge DDR5 RDIMM Kit

This 64GB kit contains two 32GB DDR5 4800 CL40 ECC Registered RDIMM modules built for specific Dell PowerEdge servers. It targets IT teams maintaining or expanding C6600, C6620, MX760C, R660 and R6615 platforms. It is not for desktop PCs or workstations that require unbuffered memory.

Registered ECC with 2Rx8 Organisation

The modules run at 1.1V with a 288-pin interface and a 2Rx8 rank structure, delivering PC5-38400 bandwidth. Registered buffering and on-die ECC protect data integrity in multi-socket server workloads. Mixing these with unbuffered or load-reduced DIMMs is not supported.

JEDEC-Compliant Dual-Module Pack

Two matched sticks enable dual-channel population without manual pairing. JEDEC and RoHS compliance ensures warranty-safe installation in the listed Dell systems. No heat spreaders are fitted, so airflow follows the server's original thermal design.

How it compares

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

Price $1,752.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.39 per GB
Pricier than about 76% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R8064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell PowerEdge C6600
Dell PowerEdge C6620
Dell PowerEdge MX760C
Dell PowerEdge R660
Dell PowerEdge R6615

Other versions of this model

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Questions about this item

What does the 4800 MT/s speed mean once the modules are installed in a Dell PowerEdge R660?

The DDR5-4800 rating sets the maximum data rate the modules will run at when the server memory controller operates at its rated speed.

How does the PC5-38400 standard limit performance in these systems?

PC5-38400 defines the peak transfer rate for DDR5-4800; the server cannot exceed this bandwidth with these DIMMs.

What physical slot and clearance do the 288-pin RDIMMs need in a PowerEdge C6600?

They require a standard 288-pin DDR5 RDIMM socket and fit the server's low-profile DIMM slots without a heat spreader.

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