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OWC

OWC 128GB (4x32GB) DDR4 2666 PC4-21300 CL19 ECC UDIMM memory upgrade for ASUSTOR AS7112RDX AS7116RDX

SKU CH-XHB4-89J4S

ECC UDIMM kit adds 128 GB across four 32 GB DDR4 2666 modules for ASUSTOR AS7112RDX and AS7116RDX NAS systems

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • 128GB kit expands NAS capacity for heavy workloads
  • Four 32GB modules fill all slots on compatible ASUSTOR units
  • DDR4 2666 CL19 ECC protects data integrity in server tasks
  • 2V unbuffered design matches JEDEC standard for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

Capacity and purpose

This 128 GB kit contains four 32 GB DDR4 ECC UDIMM modules designed for ASUSTOR AS7112RDX and AS7116RDX systems. It targets NAS administrators who need maximum memory capacity for virtualisation, heavy caching or multi-user workloads.

Build integration

Each module is a 288-pin unbuffered DIMM running at 1.2 V with CL19 latency at 2666 MHz. The kit fills all available slots on the compatible models, so no further memory expansion is possible once installed. Backward compatibility with 2133 MHz and 2400 MHz platforms allows use in mixed-speed environments.

Sustained operation

JEDEC-standard DDR4 circuitry and ECC error correction maintain data integrity during continuous file-serving and backup tasks. The low-voltage design limits thermal output inside the NAS chassis, supporting stable performance over long uptime periods without active module cooling.

Points forts

  • 128GB kit expands NAS capacity for heavy workloads
  • Four 32GB modules fill all slots on compatible ASUSTOR units
  • DDR4 2666 CL19 ECC protects data integrity in server tasks
  • 2V unbuffered design matches JEDEC standard for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

Caractéristiques

BrandOWC
Part Number2E6D42R8128S
Capacity128GB (4 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 does the CL19 latency behave when the 128GB kit runs continuously in an ASUSTOR AS7112RDX?

The modules operate at DDR4 2666 with CL19 timing at 1.2V; sustained workloads stay within JEDEC electrical limits so latency remains stable.

What thermal or acoustic impact should I expect from four 32GB unbuffered ECC DIMMs running 24/7 in a LOCKERSTOR 16R PRO?

No heat spreaders are fitted; the 1.2V DDR4 parts generate modest heat and add no audible noise, relying on the NAS chassis airflow for cooling.

Which existing hardware must my ASUSTOR NAS already have for this 4×32GB DDR4 2666 ECC UDIMM kit to function?

The system must provide four free 288-pin DDR4 UDIMM slots and support ECC unbuffered memory; the AS7112RDX and AS7116RDX meet both requirements.

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