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Single green 288-pin DDR4 RDIMM module with black memory chips, no heat spreader

OWC

OWC 3R2D48R4128G 128GB DDR4 3200 ECC RDIMM memory upgrade

SKU CH-1294-9EQ2M

A single 128GB DDR4 3200 ECC registered DIMM for Dell PowerEdge C6520, C6525, MX750c, R650 and R6515 servers

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128 GB single module doubles server capacity
  • ECC registered design prevents data corruption in critical workloads
  • 3200 MHz DDR4 speed with CL22 latency accelerates throughput
  • 2 V operation reduces power draw and heat
  • Validated for Dell PowerEdge C6520, C6525, MX750c, R650, R6515

Server memory upgrade for Dell PowerEdge

This OWC 128GB DDR4 3200 ECC RDIMM is a single registered module built for Dell PowerEdge C6520, C6525, MX750c, R650 and R6515 servers. It targets administrators who need high-density, error-correcting memory to expand or refresh compatible platforms.

Sustained operation with ECC registered design

The registered buffer and ECC circuitry maintain data integrity during continuous workloads typical of server environments. Operation at 1.2V and CL22 latency supports stable throughput across 2133, 2400, 2666, 2933 and 3200 MHz speeds without the errors that unbuffered memory can introduce over long runs.

128GB capacity in one 288-pin slot

A single 128GB 8Rx4 module delivers maximum capacity per DIMM slot, which is the decisive factor when the chassis has limited slots and the application demands large memory footprints. It will not work in standard desktops or alongside unbuffered or load-reduced DIMMs.

How it compares

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

Price $796.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 22
Typical for this category: the median of 483 items is 22.
Price per GB $6.23 per GB
Cheaper than about 63% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell PowerEdge C6520
Dell PowerEdge C6525
Dell PowerEdge MX750c
Dell PowerEdge R650
Dell PowerEdge R6515

Questions about this item

How much power does the 128GB DDR4 3200 ECC RDIMM draw at its rated 1.2V during continuous server operation?

The module runs at 1.2V, the standard DDR4 voltage, so power draw stays within JEDEC limits for registered ECC DIMMs in sustained workloads.

Which Dell PowerEdge systems must I already have for this 288-pin 8Rx4 registered module to be supported?

Qualified platforms are the PowerEdge C6520, C6525, MX750c, R650 and R6515; the DIMM is not compatible with standard desktops or unbuffered memory configurations.

Will this 3200MHz CL22 registered DIMM run stably alongside existing 2666MHz or 2933MHz modules in the same server?

Yes, backward compatibility is specified for 2133, 2400, 2666 and 2933MHz speeds; the system will clock all modules to the lowest common rate.

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