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Two green 288-pin DDR4 UDIMM modules, no heat spreaders

OWC

OWC 64GB (2x32GB) DDR4 2666 CL19 ECC UDIMM 2Rx8 1.2V ASUSTOR AS7112RDX AS7116RDX

SKU CH-XWCF-Q5D2R

A 64 GB DDR4 2666 ECC UDIMM kit adds 100 % JEDEC-compliant memory to ASUSTOR AS7112RDX and AS7116RDX NAS systems

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 64GB (2 x 32GB)

  • 64GB total capacity for demanding NAS workloads
  • DDR4 2666 CL19 ECC UDIMM ensures data integrity
  • 2Rx8 dual-rank organisation improves memory throughput
  • JEDEC-standard 1.2V operation reduces power draw
  • Compatible with ASUSTOR AS7112RDX and AS7116RDX systems

64 GB DDR4 ECC kit for ASUSTOR NAS

This 64 GB kit contains two 32 GB DDR4 2666 CL19 ECC UDIMMs validated for ASUSTOR AS7112RDX and AS7116RDX Lockerstor systems. It targets administrators who need error-correcting memory to protect data integrity in multi-user storage workloads. The modules run at 1.2 V and conform to JEDEC PC4-21300 specifications.

Thermals and power at standard speeds

Without heat spreaders the modules rely on system airflow, drawing 1.2 V at the rated 2666 MT/s speed. ECC operation adds negligible overhead, so power draw and acoustics remain identical to non-ECC UDIMMs in the same chassis. Backward compatibility with 2133 and 2400 MT/s lets the kit run cooler if the platform downclocks automatically.

Behaviour under sustained load

Error correction activates continuously during prolonged file transfers, RAID rebuilds or virtualisation tasks, correcting single-bit errors without halting the system. The dual-rank 2Rx8 organisation maintains full bandwidth across all populated slots during extended operations. No thermal throttling occurs because the modules operate within standard DDR4 voltage and timing envelopes.

Points forts

  • 64GB total capacity for demanding NAS workloads
  • DDR4 2666 CL19 ECC UDIMM ensures data integrity
  • 2Rx8 dual-rank organisation improves memory throughput
  • JEDEC-standard 1.2V operation reduces power draw
  • Compatible with ASUSTOR AS7112RDX and AS7116RDX systems

Caractéristiques

BrandOWC
Part Number2E6D42R8064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemASUSTOR AS7112RDX
ASUSTOR AS7116RDX

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Questions sur cet article

How do I install the 288-pin DDR4 ECC UDIMM modules into the ASUSTOR AS7112RDX and what step is often missed?

Power off the NAS, open the chassis, align each module's notch with the slot key, press firmly until the retention clips click, then verify the full 64GB appears in the system BIOS before closing the case.

What maintenance or replacement will this ECC UDIMM kit need over its service life?

No scheduled maintenance is required; the modules are solid-state with no moving parts, and the limited lifetime warranty covers replacement if a memory error is ever detected by the ECC logic.

What is the first limit reached under sustained heavy workloads with these CL19 2666MHz modules?

The memory bandwidth ceiling of PC4-21300 is reached before thermal throttling, since the unbuffered DDR4 runs at 1.2V without a heat spreader and stays within JEDEC thermal limits.

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