We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with gold edge contacts and black memory chips

OWC

OWC 32GB DDR4 2666 ECC Registered RDIMM 288-Pin 2Rx4 CL19 1.2V server RAM

SKU CH-7AMM-VPR35

32 GB DDR4 2666 ECC registered RDIMM for servers, workstations and NAS, 288-pin 2Rx4 CL19 1.2 V, backward compatible with 2133 and 2400 MHz

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 32 GB capacity expands server memory headroom
  • DDR4 2666 speed with CL19 latency supports responsive workloads
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw in dense configurations
  • Compatible with 2133 MHz and 2400 MHz systems for flexible upgrades

32 GB DDR4-2666 ECC RDIMM for servers

This 32 GB module runs at DDR4 2666 with CL19 latency and 1.2 V power. It is built as a 2Rx4 registered DIMM with on-die ECC for data integrity. The part matches Hynix HMA84GR7AFR4N-VK and HMA84GR7CJR4N-VK specifications. It targets administrators upgrading workstations, servers or NAS systems that require registered memory.

Registered DDR4 limits for desktop builders

The registered buffer adds a clock cycle and prevents use in standard desktop motherboards that expect unbuffered DIMMs. Mixing this module with unbuffered memory is not supported and will cause boot failure. Speed falls back to 2133 MHz or 2400 MHz when the platform does not support 2666 MHz. JEDEC compliance ensures correct operation at those lower speeds.

288-pin form factor without heat spreader

The bare 288-pin PCB fits dense server slots where tall heat spreaders would block airflow or adjacent modules. Absence of a spreader reduces height and weight, easing installation in 1U or blade chassis. Gold-edge contacts meet JEDEC and RoHS standards for long-term reliability. OWC tests every module in-house before shipment.

How it compares

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

Price $209.99
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 $6.56 per GB
Cheaper than about 58% of the 6,064 comparable items (median $7.25 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 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

Which OWC DDR4 ECC RDIMM capacity should I choose for my server upgrade?

This module provides 32GB in a single 288-pin registered DIMM. Select it when your platform needs ECC registered memory and you want to add 32GB per slot.

What does the 2666MHz PC4-21300 rating mean once the module is installed?

The module runs at 2666MHz with CL19 latency at 1.2V. It will also operate at 2400MHz or 2133MHz if the system requires a lower speed.

How does the DDR4 288-pin registered interface affect compatibility?

The 288-pin registered DDR4 form factor fits only server, workstation or NAS boards that support ECC registered memory. It cannot be used in standard desktop systems or mixed with unbuffered DIMMs.

More in ECC Server RAM

Similar items