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Green rectangular circuit board with gold edge connectors and black memory chips

OWC

OWC 16GB DDR4 2933MHz ECC Registered RDIMM 2Rx8 Dell PowerEdge R550 R640 R740 R740XD R740XD2 memory upgrade

SKU CH-SFJV-KP45D

16GB DDR4 2933MHz ECC registered RDIMM for Dell PowerEdge R550, R640, R740, R740XD and R740XD2 servers

  • Total capacity16 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 16GB

  • ECC registered design prevents data corruption in servers
  • 2933 MHz DDR4 speed boosts throughput for demanding workloads
  • 16 GB capacity expands memory for virtualisation and databases
  • Compatible with Dell PowerEdge R550 R640 R740 R740XD R740XD2
  • Replaces Dell part numbers AA579532 AA601617 AB003152 SNPTFYHPC/16G SNPTFYHPC/16VXR TFYHP

16GB DDR4 ECC RDIMM for Dell PowerEdge servers

This 16GB registered DIMM targets Dell PowerEdge R550, R640, R740, R740XD and R740XD2 platforms that require ECC registered memory. It is not for standard desktop computers or any system that only accepts unbuffered modules. Builders needing consumer DDR4 should look elsewhere.

Capacity and headroom

The single 16GB module runs at 2933MHz with CL21 latency and 1.2V operation, providing registered ECC reliability for virtualisation, databases and multi-user workloads. Backward compatibility with 2133MHz, 2400MHz and 2666MHz bus speeds lets it slot into existing configurations, though maximum throughput stays at the rated PC4-23400 level.

Registered ECC 2Rx8 organisation

The 2Rx8 registered ECC design is the decisive specification; it must match the motherboard's memory controller requirements exactly. Mixing this module with unbuffered or non-ECC memory will prevent the system from posting, so verify the platform demands registered ECC RDIMMs before purchase.

How it compares

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

Price $110.99
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 $6.94 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell PowerEdge R550
Dell PowerEdge R640
Dell PowerEdge R740
Dell PowerEdge R740XD
Dell PowerEdge R740XD2

Other versions of this model

5 more in the same range

Questions about this item

Will this 2933 MHz ECC registered RDIMM run reliably in a PowerEdge R740 that currently has 2666 MHz modules installed?

The module is backward compatible with 2666 MHz, 2400 MHz and 2133 MHz speeds, so it will operate at the lower frequency of the existing memory without issues.

How can I verify the 16 GB RDIMM is detected and running with ECC active after installation?

Check the system BIOS or iDRAC interface; it will show the new 16 GB capacity, 2933 MHz speed, and ECC registered status for each populated slot.

Does the single 16 GB 2Rx8 RDIMM ship with a heat spreader or any extra cables?

The module has no heat spreader and no cables are included; only the 288-pin DDR4 ECC registered DIMM itself is in the box.

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