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Green circuit board with gold contacts and black memory chips, 288-pin DDR4 UDIMM module

OWC

OWC 8GB DDR4 3200 CL22 ECC Unbuffered UDIMM memory upgrade

SKU CH-71BC-0Y64F

8GB DDR4 3200 CL22 ECC unbuffered UDIMM validated for QNAP TVS-h1288X and TVS-h1688X NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • ECC protection prevents data errors in critical workloads
  • 3200 MHz speed with CL22 latency for responsive performance
  • Low 1.2 V operation reduces power draw and heat
  • Validated for QNAP TVS-h1288X and TVS-h1688X NAS systems
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz platforms

8 GB DDR4 ECC UDIMM for QNAP NAS

This 8 GB DDR4 3200 module adds error-correcting memory to compatible QNAP TVS-h1288X and TVS-h1688X systems. It runs at PC4-25600 with CL22 latency and 1.2 V operation. The unbuffered 1Rx8 design fits standard 288-pin UDIMM slots. Builders expanding a supported NAS can install it directly.

JEDEC standard compliant upgrade

The module meets JEDEC and RoHS specifications, so it installs without voiding the original system warranty. Backward compatibility lets it clock down to 2133, 2400, 2666 or 2933 MT/s if the platform requires a lower speed. No extra software or drivers are needed; the NAS recognises the memory on boot.

ECC unbuffered 288-pin DDR4 3200

The decisive specification is the ECC unbuffered DDR4 3200 interface in a 288-pin UDIMM form factor. Only systems that accept this exact combination will operate correctly. Buyers whose hardware requires registered, non-ECC or a different DDR generation cannot use this module.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $54.99
Cheaper than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.87 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3E2D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsQNAP TVS-h1288X
QNAP TVS-h1688X

Other versions of this model

5 more in the same range

Questions about this item

Will the single 8 GB DDR4 3200 CL22 ECC UDIMM need replacement if I expand my QNAP TVS-h1288X beyond its current capacity?

The module is a single 8 GB stick; adding more memory later simply means populating empty slots, not replacing this one.

What speed ceiling appears first when the module runs continuously in a TVS-h1688X?

The JEDEC-rated 3200 MT/s CL22 is the fixed operating point; the module does not throttle below that speed under sustained load.

How much heat and power does the 1.2 V unbuffered DIMM produce during all-day NAS operation?

At 1.2 V with no heat spreader, the stick draws standard DDR4 power and relies on chassis airflow for cooling.

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