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Green rectangular circuit board with gold edge contacts and black memory chips, no heat spreader

OWC

OWC 16GB DDR4 3200 PC4-25600 CL22 1Rx8 288-pin 1.2V ECC UDIMM memory upgrade

SKU CH-PFVT-5B8M8

16 GB DDR4 3200 ECC UDIMM with CL22 latency and 1.2 V operation for QNAP TS-h series NAS

  • Capacity16GB
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes
  • 16GB capacity expands NAS multitasking headroom
  • DDR4 3200 speed accelerates data throughput
  • CL22 latency balances timing with stability
  • ECC protection guards against data corruption
  • 2V operation reduces system power draw

16GB ECC UDIMM for QNAP NAS

This OWC module adds 16GB of DDR4 3200 memory to compatible QNAP TS-h series NAS units. It is an unbuffered ECC UDIMM built to JEDEC and RoHS standards. The single-rank 1Rx8 design fits the 288-pin slots in the listed models. It replaces QNAP part RAM-16GDR4ECK1-UD-3200.

Sustained operation at DDR4 3200 CL22

The module runs at 1.2V with CL22 latency across continuous workloads such as virtualisation, file serving or backup jobs. Backward compatibility lets it operate at 2133, 2400, 2666 or 2933 MT/s when the platform requires a lower speed. ECC corrects single-bit errors during long uptime periods.

Thermals and power in a NAS chassis

Without a heat spreader the DRAM relies on system airflow for cooling. The 1.2V rating keeps power draw low inside dense multi-bay enclosures. Unbuffered operation avoids the extra registered clock load, helping the memory controller maintain stable timing under typical NAS duty cycles.

Points forts

  • 16GB capacity expands NAS multitasking headroom
  • DDR4 3200 speed accelerates data throughput
  • CL22 latency balances timing with stability
  • ECC protection guards against data corruption
  • 2V operation reduces system power draw

Caractéristiques

BrandOWC
Part Number3E2D41R816GB
Capacity16GB
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemQNAP TS-h1887XU
QNAP TS-h2287XU
QNAP TS-h3087XU
QNAP TS-h3088XU-RP
QNAP TS-h987XU

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Questions sur cet article

How much power does the 1.2V DDR4 module draw when the NAS runs continuously?

The module operates at the standard DDR4 voltage of 1.2V. ECC UDIMMs at this voltage typically draw only a few watts per stick, so heat output remains low inside the QNAP chassis.

Does my QNAP TS-h3087XU need a specific BIOS version or firmware update before installing this ECC UDIMM?

The module is validated for the TS-h1887XU, TS-h2287XU, TS-h3087XU, TS-h3088XU-RP and TS-h987XU. OWC states it meets OEM specs, so no extra firmware step is required beyond the normal NAS update cycle.

Will this CL22 3200MHz stick downclock reliably alongside my existing 2666MHz ECC modules?

Yes. The specification lists backward compatibility with 2133MHz, 2400MHz, 2666MHz and 2933MHz. The module will run at the lowest common speed when mixed with slower DIMMs.

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