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Green circuit board with black memory chips and gold edge contacts

OWC

OWC 32GB DDR4 3200 ECC Registered RDIMM 2Rx4 CL22 1.2V 288-pin QNAP compatible

SKU CH-XNFR-R0VGP

32 GB DDR4 3200 ECC registered RDIMM for QNAP TDS-h2489FU, TVS-h474, TVS-h674, TVS-h874 and TS-1655

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes
  • ECC registered design protects data integrity in servers
  • 32GB single module expands capacity for QNAP NAS
  • DDR4 3200 speed matches system requirements
  • 2V operation reduces power draw under load
  • Validated for TDS-h2489FU TVS-h474 TVS-h674 TVS-h874 TS-1655

OWC 32GB DDR4 3200 ECC RDIMM

This registered ECC module is built for QNAP rackmount and tower NAS models including the TDS-h2489FU, TVS-h474, TVS-h674, TVS-h874 and TS-1655. It will not work in standard desktop computers and cannot be mixed with unbuffered memory.

Single 32GB module upgrades capacity

The kit consists of one 32GB DDR4 3200 PC4-25600 CL22 2Rx4 288-pin 1.2V registered DIMM. It replaces QNAP part numbers RAM-32GDR4ECK0-RD-3200, RAM-32GDR4ECK1-RD-3200 and RAM-32GDR4ECT0-RD-3200 for a direct slot-in upgrade.

288-pin registered DIMM form factor

The module uses a standard 288-pin DDR4 RDIMM edge connector without a heat spreader, fitting the approved QNAP memory slots. Buyers needing unbuffered memory or desktop compatibility should look elsewhere.

Highlights

  • ECC registered design protects data integrity in servers
  • 32GB single module expands capacity for QNAP NAS
  • DDR4 3200 speed matches system requirements
  • 2V operation reduces power draw under load
  • Validated for TDS-h2489FU TVS-h474 TVS-h674 TVS-h874 TS-1655

Specifications

BrandOWC
Part Number3R2D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemQNAP TDS-h2489FU
QNAP TVS-h474
QNAP TVS-h674
QNAP TVS-h874
QNAP TS-1655

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Questions about this item

Will the registered ECC RDIMM require any periodic firmware updates or component replacements during its service life?

No firmware updates or component replacements are needed; the module is a passive DDR4 component with no moving parts or updatable firmware.

What thermal or electrical limit is reached first when the module runs continuously at 3200 MT/s in a populated QNAP chassis?

The 1.2 V operating voltage and JEDEC-defined thermal envelope are the primary limits; sustained loads stay within spec as long as system airflow meets the NAS vendor's guidelines.

How much additional heat and power does a single 32 GB stick add when the NAS operates 24/7?

At 1.2 V the module draws only a few watts, adding minimal heat that the existing QNAP cooling design is engineered to dissipate without extra fan noise.

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