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Green circuit board memory module with gold edge connectors and black chips, no heat spreader

OWC

OWC 16GB DDR4 2666 ECC UDIMM 2Rx8 CL19 1.2V ASUSTOR AS7112RDX AS7116RDX

SKU CH-NB51-X1GP3

A 16 GB DDR4 2666 ECC UDIMM module with CL19 latency and 1.2 V operation, validated for ASUSTOR AS7112RDX and AS7116RDX NAS systems

  • Capacity16GB
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 16GB

  • ECC protection guards data integrity on ASUSTOR AS7112RDX and AS7116RDX
  • 16GB DDR4 2666 CL19 boosts multitasking for NAS workloads
  • 2V unbuffered UDIMM fits 288-pin slots without extra power
  • Backward compatible with 2133 and 2400MHz systems for flexible upgrades
  • JEDEC and RoHS compliant module validated for warranty-safe installation

16GB DDR4 ECC UDIMM for ASUSTOR NAS

This 16GB DDR4 2666 ECC unbuffered UDIMM is built for ASUSTOR AS7112RDX and AS7116RDX Lockerstor units. It targets administrators who need error-correcting memory to protect data integrity in multi-bay NAS appliances.

JEDEC DDR4 2666 standard limits

The module follows the JEDEC DDR4 2666 PC4-21300 specification with CL19 latency and 1.2V operation. It will down-clock to 2133MHz or 2400MHz if the system bus requires a lower speed, but it cannot exceed the rated 2666MT/s transfer rate.

Single-rank 2Rx8 layout without heat spreader

The 288-pin DIMM uses a 2Rx8 organisation and has no heat spreader, keeping the profile low for dense NAS chassis. Gold-edge contacts slot directly into the motherboard, and the lack of a spreader means adjacent slots stay accessible in tight bays.

Highlights

  • ECC protection guards data integrity on ASUSTOR AS7112RDX and AS7116RDX
  • 16GB DDR4 2666 CL19 boosts multitasking for NAS workloads
  • 2V unbuffered UDIMM fits 288-pin slots without extra power
  • Backward compatible with 2133 and 2400MHz systems for flexible upgrades
  • JEDEC and RoHS compliant module validated for warranty-safe installation

Specifications

BrandOWC
Part Number2E6D42R816GB
Capacity16GB
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 about this item

Should I choose the 16 GB module or add multiple sticks for the ASUSTOR AS7112RDX?

This is a single 16 GB DDR4 2666 ECC UDIMM. Add one module per available slot on the AS7112RDX or AS7116RDX to reach the total capacity you need.

What does the 2666 MHz rating deliver once installed in the NAS?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency at 1.2 V, giving the rated throughput and error correction for the ASUSTOR LOCKERSTOR 12R and 16R Pro.

Is the 288-pin ECC UDIMM interface limited to 2666 MHz in these ASUSTOR models?

The stick is a 288-pin DDR4 ECC UDIMM rated for 2666 MHz and will also operate at 2133 MHz or 2400 MHz if the system requires a lower speed.

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