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Green rectangular DDR4 RDIMM module with gold edge connectors and black memory chips, no heat spreader

OWC

OWC 32GB DDR4 2666 ECC Registered RDIMM CL19 2Rx4 1.2V 288-pin QNAP TS-2888X memory upgrade

SKU CH-T27E-MP4WD

A 32GB DDR4 2666 ECC registered RDIMM with CL19 latency and 1.2V operation for QNAP TS-2888X servers

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 32 GB capacity expands NAS memory for larger workloads
  • DDR4 2666 speed matches QNAP TS-2888X specifications
  • ECC registered design protects data integrity in server tasks
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133 MHz and 2400 MHz systems

Targeted QNAP TS-2888X upgrade

This 32 GB DDR4 2666 ECC Registered RDIMM is built specifically for the QNAP TS-2888X NAS. It delivers 32 GB of error-correcting capacity in a single 288-pin module running at 1.2 V. The registered design and 2Rx4 organisation suit server-grade workloads and cannot be used in standard desktop boards.

Build integration

The module plugs directly into the TS-2888X memory slots and operates at PC4-21300 speed with CL19 timing. It is backward compatible with 2133 MHz and 2400 MHz bus speeds, so it will clock down automatically if the system requires a lower frequency. No heat spreader is fitted, leaving clearance for dense DIMM populations. ECC registered memory cannot be mixed with unbuffered modules.

Capacity and headroom

A single 32 GB stick doubles the memory pool of a stock 32 GB configuration and scales further when additional identical modules are added. The registered buffer and ECC logic maintain data integrity under sustained multi-user NAS workloads such as virtualisation or database caching. Workloads needing more than the installed DIMM count allows will require additional slots or a platform with higher maximum memory.

Highlights

  • 32 GB capacity expands NAS memory for larger workloads
  • DDR4 2666 speed matches QNAP TS-2888X specifications
  • ECC registered design protects data integrity in server tasks
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133 MHz and 2400 MHz systems

Specifications

BrandOWC
Part Number2R6D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemQNAP TS-2888X

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Questions about this item

How does the CL19 latency affect sustained throughput on the QNAP TS-2888X?

CL19 at 2666 MT/s delivers the rated PC4-21300 bandwidth; sustained throughput is limited by the memory controller and workload, not by the module latency alone.

What heat output should I expect from the 1.2 V RDIMM during continuous operation?

The 1.2 V ECC registered DIMM runs at standard DDR4 voltage with no heat spreader, so thermal output is low and managed by the chassis airflow.

Does the QNAP TS-2888X require any specific firmware or BIOS setting to recognise this 2Rx4 ECC registered module?

The module replaces QNAP part RAM-32GDR4ECK0-RD-2666 and is designed for direct compatibility; the system will detect the 32 GB capacity at 2666 MT/s or at the lower 2133/2400 MT/s speeds.

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