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OWC

OWC 64GB (4x16GB) DDR4 3200 PC4-25600 CL22 1Rx4 288-pin 1.2V ECC Registered RDIMM Kit Cisco UCS C4200

SKU CH-HFMW-NEJFF

64 GB DDR4 3200 ECC registered RDIMM kit with four 16 GB modules at CL22 for Cisco UCS C4200 servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 64GB (4 x 16GB)

Show 2 more
  • 64 GB kit expands Cisco UCS C4200 capacity
  • ECC registered design protects data integrity in servers
  • DDR4 3200 speed matches system specifications
  • Four 16 GB modules fill quad-channel slots
  • 2 V operation reduces power draw per DIMM

OWC 64GB DDR4 ECC RDIMM Kit for Cisco UCS C4200

This OWC kit provides 64GB of DDR4 3200 registered ECC memory across four 16GB modules. It is built for the Cisco UCS C4200 server platform and uses 288-pin RDIMMs with a CAS latency of 22 and 1.2V operation. The modules are 1Rx4 ranked and validated for JEDEC compliance.

Suited for Cisco UCS C4200 upgrades only

This memory fits the Cisco UCS C4200 and replaces Cisco part numbers UCSMRX16G1RW and UCSXMRX16G1RW. It will not work in standard desktop computers or systems that require unbuffered or load-reduced DIMMs. Builders needing non-ECC memory or a different form factor must choose another product.

64GB registered ECC capacity for server workloads

The four-module kit delivers 64GB total capacity for virtualization, database or compute tasks on the supported platform. Registered ECC operation helps maintain data integrity under sustained load. Systems requiring more than 64GB or a different memory speed will need alternative modules.

How it compares

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

Price $433.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.78 per GB
Cheaper than about 59% 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 number3R2D41R4064S
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS C4200

Other versions of this model

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Questions about this item

Does this kit require a Cisco UCS C4200 server with ECC registered RDIMM slots?

Yes, it is built for the Cisco UCS C4200 and uses 288-pin DDR4 ECC registered RDIMMs that only fit servers supporting registered ECC memory.

Can I mix these 16 GB 1Rx4 modules with existing unbuffered or load-reduced DIMMs in the same server?

No, registered ECC modules cannot be mixed with unbuffered or load-reduced memory; all slots must use matching registered ECC DIMMs.

How can I verify the kit runs at 3200 MT/s with CL22 after installation?

Check the server BIOS or operating-system memory report; it should show 3200 MT/s speed and CAS latency 22 for each of the four 16 GB modules.

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