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Green circuit board with gold contacts and black memory chips

OWC

OWC 16GB DDR4 2666MHz ECC Registered RDIMM 2Rx8 CL19 1.2V 288pin memory upgrade

SKU CH-6BDX-D3TYZ

16GB DDR4 ECC Registered RDIMM at 2666MHz CL19 for Supermicro M11SDV server boards

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 16GB

  • ECC protection prevents data corruption in servers
  • Registered design improves signal integrity for heavy workloads
  • 16GB capacity at 2666MHz supports demanding applications
  • 2V operation reduces power draw and heat
  • Validated for five Supermicro M11SDV motherboard models

OWC 16GB DDR4 ECC Registered RDIMM

This 16GB DDR4 2666MHz module is an ECC registered RDIMM built for server and workstation platforms. It carries a CL19 latency and operates at 1.2V using a 288-pin form factor. The kit is validated for specific Supermicro M11SDV motherboards.

Suits ECC registered server builds only

It fits administrators upgrading compatible Supermicro M11SDV-4C, 4CT, 8C, 8CT and 8C+ models. It will not work in standard desktop computers and cannot be mixed with unbuffered DIMMs. Builders needing consumer memory should look elsewhere.

Registered ECC with 2Rx8 organisation

The module uses a 2Rx8 rank structure and registered ECC buffering for data integrity in multi-DIMM configurations. It is backward compatible with 2133MHz and 2400MHz bus speeds. Systems requiring unbuffered non-ECC memory cannot use this part.

How it compares

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

Price $111.99
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 $7.00 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R6D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Does this 288pin DDR4 ECC RDIMM require a Supermicro M11SDV series motherboard to function?

Yes, this 16GB module is validated for the Supermicro M11SDV-4C-LN4F, M11SDV-4CT-LN4F, M11SDV-8C+-LN4F, M11SDV-8C-LN4F and M11SDV-8CT-LN4F boards.

Can I install this registered 2Rx8 stick alongside 2133MHz or 2400MHz ECC RDIMMs already in my server?

The module is backward compatible with 2133MHz and 2400MHz speeds, but all installed DIMMs must be ECC registered; mixing with unbuffered memory is not supported.

How do I confirm the DIMM is running at the correct 2666MHz CL19 1.2V settings after installation?

Check the BIOS memory information or the operating system's hardware report to verify the speed reads 2666MHz, latency shows CL19 and voltage reports 1.2V.

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