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Green circuit board with black memory chips and gold edge connector

OWC

OWC 32GB DDR4 2933MHz CL21 1.2V 288pin ECC Registered RDIMM memory upgrade

SKU CH-TNED-MSXH2

32GB DDR4 ECC registered RDIMM at 2933MHz CL21 for Dell PowerEdge FC640, M640, MX740c, MX840c and R450 servers

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB

  • 32GB capacity supports demanding server workloads
  • ECC registered design detects and corrects data errors
  • DDR4 2933MHz CL21 speed matches system requirements
  • 2V operation reduces power draw in compatible Dell PowerEdge servers
  • Backward compatible with 2133, 2400 and 2666MHz platforms

32GB DDR4 ECC Registered RDIMM

This 32GB DDR4 module is built for Dell PowerEdge servers including the FC640, M640, MX740c, MX840c and R450. It delivers error-correcting, registered memory for workloads that require data integrity and platform stability.

Registered ECC with 2Rx4 organisation

The single specification that decides fit is the registered ECC design with 2Rx4 ranking; this memory will not work in standard desktop computers and cannot be mixed with unbuffered modules.

32GB capacity at 2933MHz with backward support

At 32GB per DIMM the kit handles large virtualisation and database tasks comfortably, while the 2933MHz CL21 rating also runs at 2666MHz, 2400MHz and 2133MHz where the platform requires it.

How it compares

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

Price $215.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.75 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell PowerEdge FC640
Dell PowerEdge M640
Dell PowerEdge MX740c
Dell PowerEdge MX840c
Dell PowerEdge R450

Other versions of this model

5 more in the same range

Questions about this item

How does the 2933MHz speed behave when installed in a Dell PowerEdge R450?

The module runs at its rated 2933MHz CL21 in the R450; if the platform configures a lower memory bus it will down-clock automatically to 2666MHz, 2400MHz or 2133MHz while keeping ECC and registered operation intact.

What does the PC4-23400 designation limit in practice?

PC4-23400 is the JEDEC peak transfer rate for DDR4-2933; the actual throughput in a server is capped by the processor's memory controller and the number of populated channels, not by the module rating itself.

Will the 288-pin registered DIMM fit the MX740c blade slot?

Yes — the MX740c uses standard 288-pin DDR4 RDIMM sockets, so this 32GB 2Rx4 module seats directly without an adapter or low-profile bracket.

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