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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 8GB DDR4 2666 ECC UDIMM CL19 1Rx8 1.2V 288-pin ASUSTOR AS7112RDX AS7116RDX

SKU CH-7CW4-HT2RF

An 8 GB DDR4 ECC UDIMM running at 2666 MHz with CL19 latency for ASUSTOR AS7112RDX and AS7116RDX NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 8GB

  • ECC protection safeguards data integrity on ASUSTOR NAS
  • DDR4 2666 speed delivers responsive multitasking performance
  • 2 V operation reduces power draw and heat
  • 1Rx8 single-rank design ensures broad compatibility
  • JEDEC and RoHS compliance guarantees reliable installation

OWC 8GB DDR4 2666 ECC UDIMM

This 8GB DDR4 2666 ECC unbuffered UDIMM is built for ASUSTOR AS7112RDX and AS7116RDX LOCKERSTOR NAS systems. It adds error-correcting memory capacity to supported 12-bay and 16-bay rackmount units. The module runs at 1.2V with CL19 latency and a 1Rx8 organisation.

Check DDR4 ECC UDIMM slot availability

Verify that your ASUSTOR NAS has a free 288-pin DDR4 UDIMM slot before ordering. The system must accept ECC unbuffered modules at 2666, 2400 or 2133 speeds. Confirm the current memory configuration to ensure the upgrade matches the platform requirements.

Replaces ASUSTOR AS-8GECD4-U module

This OWC module directly replaces the ASUSTOR part number AS-8GECD4-U with a JEDEC-standard 8GB DDR4 2666 ECC UDIMM. The upgrade is worth it when the NAS shows memory pressure during multi-user file access or virtualisation workloads. Backward compatibility with 2400 and 2133 speeds eases mixed-population installs.

How it compares

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

Price $60.99
Cheaper than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.62 per GB
Typical for this category: the median of 20,941 items is $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 number2E6D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUSTOR AS7112RDX
ASUSTOR AS7116RDX

Other versions of this model

5 more in the same range

Questions about this item

What comes with the OWC 8GB DDR4 2666 ECC UDIMM module and what else is needed?

The box contains one 8GB DDR4 2666 CL19 1Rx8 1.2V ECC unbuffered UDIMM. No extra parts are required; the module fits directly into the ASUSTOR AS7112RDX or AS7116RDX memory slots.

Which capacity and speed version should I choose for the ASUSTOR LOCKERSTOR 12R or 16R PRO?

This specific module is the 8GB DDR4 2666 (PC4-21300) CL19 1Rx8 ECC UDIMM. It matches the ASUSTOR part number AS-8GECD4-U and is the correct upgrade for those NAS models.

What does the 2666 MHz speed mean once the module is installed in the ASUSTOR NAS?

The module runs at 2666 MHz (PC4-21300) with CL19 latency at 1.2V. It is backward compatible with 2133 MHz and 2400 MHz operation if the system requires a lower speed.

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