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Green rectangular DDR4 RDIMM module with gold edge contacts and black memory chips, no heat spreader

OWC

OWC 2R6D42R432GB 32GB DDR4 2666 CL19 ECC Registered RDIMM

SKU CH-V6SK-MY7RV

32GB DDR4 2666 CL19 ECC registered RDIMM for servers, workstations and NAS systems with 2Rx4 rank and 1.2V operation

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 32GB capacity supports larger workloads and virtualization
  • DDR4 2666 speed with CL19 latency for responsive performance
  • 2V operation reduces power draw and heat output
  • Backward compatible with 2133MHz and 2400MHz systems

Server ECC RDIMM

This 32GB DDR4 2666 CL19 module is a registered ECC RDIMM built for servers, workstations and NAS systems. It runs at 1.2V with a 2Rx4 rank layout on a 288-pin interface. The part is designed as a direct replacement for QNAP part RAM-32GDR4ECK0-RD-2666 and meets JEDEC and RoHS standards.

Replaces slower DDR4

The module upgrades existing 2133MHz or 2400MHz DDR4 ECC registered memory while maintaining full backward compatibility. The jump is worth it when your workload needs the higher 2666MHz data rate and 21300 bandwidth to reduce latency in multi-threaded server tasks. It will not work in standard desktop computers and cannot be mixed with unbuffered DIMMs.

Fits registered memory slots

Installation requires a platform that supports DDR4 ECC registered RDIMMs with 288-pin slots and 1.2V operation. The module frees up capacity headroom for virtualisation, large datasets or ZFS caches without adding heat spreaders that could conflict with tight server chassis spacing. Verify your system manual for maximum supported capacity per slot and total population rules.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $215.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $6.75 per GB
Cheaper than about 56% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2R6D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Does the 288-pin DDR4 RDIMM fit a standard server DIMM slot?

Yes, the module uses the standard 288-pin DDR4 RDIMM form factor for server and workstation motherboards.

What BIOS setting is often missed when installing this ECC registered memory?

Enable ECC and registered memory support in the BIOS; the system will not recognise the module if those options remain disabled.

Will the 1.2V modules need active cooling or replacement fans over time?

No, the modules run at 1.2V without a heat spreader and have no moving parts, so no cooling maintenance or replacement is required.

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