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Green rectangular circuit board with gold edge connector and black memory chips on both sides

OWC

OWC 8GB DDR4 3200 CL22 1Rx8 UDIMM memory upgrade for QNAP TS-877XU TS-877XU-RP TS-1277XU-RP TS-1677XU-RP

SKU CH-8R79-PYN38

8 GB DDR4 3200 CL22 non-ECC UDIMM for QNAP TS-877XU, TS-877XU-RP, TS-1277XU-RP and TS-1677XU-RP NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8GB capacity expands NAS multitasking headroom
  • DDR4 3200 CL22 speed matches system spec
  • 2V low-voltage operation reduces power draw
  • 288-pin UDIMM form factor fits QNAP bays
  • Backward compatible with 2133 2400 2666 2933 MHz systems

8GB DDR4 3200 UDIMM for QNAP NAS

This 8GB DDR4 3200 module is built as a direct memory upgrade for QNAP TS-877XU, TS-877XU-RP, TS-1277XU-RP and TS-1677XU-RP systems. It uses a 288-pin unbuffered UDIMM form factor and operates at 1.2V with CL22 latency. The single 1Rx8 rank module replaces QNAP part number RAM-8GDR4T0-UD-3200 and meets JEDEC specifications.

Suits owners of listed QNAP models adding capacity

Buyers with compatible QNAP NAS units can install this module to increase system memory for multitasking and larger workloads. The non-ECC unbuffered design matches the factory specification for these models. This module is not for systems that require ECC registered memory or a different DDR generation. It also does not suit builds needing speeds above 3200MHz or capacities beyond a single 8GB stick.

Check your NAS model and empty DIMM slots

Verify the exact model number on your QNAP chassis matches one of the four listed series before ordering. Confirm the motherboard has an available 288-pin DDR4 UDIMM slot and that the system BIOS supports 3200MHz operation with CL22 timing. The module is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz bus speeds if the platform runs at a lower frequency.

How it compares

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

Price $45.99
Cheaper than about 79% 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 $5.75 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3U2D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsQNAP TS-877XU
QNAP TS-877XU-RP
QNAP TS-1277XU-RP
QNAP TS-1677XU-RP

Other versions of this model

5 more in the same range

Questions about this item

Does my QNAP TS-877XU need an empty 288-pin DDR4 UDIMM slot for this 8GB module?

Yes, the module is a 288-pin DDR4 UDIMM and requires a free UDIMM slot in the NAS.

Will this 3200MHz CL22 stick run stably alongside my existing 2666MHz DDR4 memory?

The module is backward compatible with 2666MHz, 2400MHz, 2133MHz and 2933MHz speeds, so it will operate at the lowest common speed.

How can I confirm the NAS recognises the full 8GB at 3200MHz after installation?

Check the system information or resource monitor in the QNAP OS; it will show 8GB total capacity and the running memory speed.

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