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Green printed circuit board with black memory chips in a 288-pin DDR4 RDIMM form factor

OWC

OWC 16GB DDR4 3200 CL22 ECC Registered RDIMM for Dell PowerVault NX3240

SKU CH-XD3X-54KRM

A 16GB DDR4 3200MHz ECC Registered RDIMM validated for Dell PowerVault NX3240 servers

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • ECC registered design protects data integrity in Dell PowerVault NX3240
  • 16GB DDR4 3200MHz module extends server memory capacity
  • CL22 latency at 1.2V balances speed and power efficiency
  • 288-pin RDIMM form factor fits Dell PowerVault NX3240 slots
  • Replaces Dell part numbers AA783421, AA799064, AA810826, AB214251, M04W6, SNPM04W6C/16G, SNPM04W6C/16VXR

16GB ECC Registered DDR4 for Dell PowerVault

This 16GB DDR4 3200MHz CL22 registered DIMM is built for the Dell PowerVault NX3240 storage server. It delivers 288-pin ECC RDIMM memory with 2Rx8 organisation and 1.2V operation. The module replaces Dell part numbers AA783421, AA799064, AA810826, AB214251, M04W6 and SNPM04W6C variants. It is not compatible with standard desktop computers or unbuffered memory configurations.

Sustained server workloads with error correction

Registered buffering reduces electrical load on the memory controller during continuous operation, while ECC detects and corrects single-bit errors in real time. JEDEC-compliant 3200MHz timing at CL22 provides stable throughput for storage-intensive tasks. The 1.2V DDR4 voltage maintains consistent power draw under extended duty cycles. OWC lab testing verifies each module meets server-grade reliability standards.

ECC Registered RDIMM — not for desktops

The single specification that decides fit is the registered ECC RDIMM form factor with 288-pin DDR4 interface. This memory will only function in systems that explicitly support registered ECC modules, such as the Dell PowerVault NX3240. Builders needing unbuffered non-ECC DIMMs for workstations or consumer motherboards cannot use this part. Mixing with unbuffered memory is not supported.

How it compares

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

Price $115.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.25 per GB
Cheaper than about 56% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3R2D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell PowerVault NX3240

Questions about this item

How much power does the 1.2V DDR4 module draw when the Dell PowerVault NX3240 runs all day?

The module operates at 1.2V, the standard DDR4 voltage, keeping power draw low during continuous server operation.

What must the Dell PowerVault NX3240 already support for this ECC Registered RDIMM to function?

The system must accept DDR4 3200 ECC Registered memory in a 288-pin slot; it will not work with unbuffered or non-ECC DIMMs.

Can this CL22 2Rx8 module be mixed with older Dell part numbers like AA783421 or SNPM04W6C/16G in the same NX3240?

It replaces those Dell part numbers, but OWC recommends all DIMMs match in capacity, speed and manufacturer for optimal performance.

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