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Green circuit board with gold edge connectors and black memory chips

OWC

OWC 8GB DDR4 2400 CL17 1Rx8 UDIMM QNAP TS-677/832 series

SKU CH-Y32C-BWHR5

Adds 8GB of DDR4 2400 CL17 memory to compatible QNAP TS-677 and TS-832 series NAS units

  • Total capacity8 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boosts NAS responsiveness with 8 GB DDR4 2400 CL17 module
  • JEDEC-standard 1.2 V unbuffered DIMM ensures warranty-safe upgrade
  • Single 1Rx8 288-pin stick installs in minutes without tools
  • Backward compatible with 2133 MHz systems for flexible deployment
  • Replaces QNAP part numbers RAM-8GDR4A0-UD-2400 and RAM-8GDR4A1-UD-2400

OWC 8GB DDR4 2400 UDIMM for QNAP NAS

This 8GB DDR4 2400 CL17 UDIMM module is built for QNAP TS-677, TS-832PXU, TS-832PXU-RP, TS-832XU and TS-832XU-RP systems. It replaces QNAP part numbers RAM-8GDR4A0-UD-2400 and RAM-8GDR4A1-UD-2400. The module suits administrators expanding memory in these specific NAS units. Buyers needing ECC registered memory or capacities beyond 8GB per slot cannot use this part.

Installation is a standard UDIMM insertion

The 288-pin unbuffered DIMM fits the memory slots on the listed QNAP models without tools. Align the notch, press firmly until the retention clips click, then power on to verify the new capacity. The most common issue is seating the module incompletely, which leaves the system showing the original memory total. Reseating usually resolves this. No BIOS configuration is required on these appliances.

The decisive specification is 1Rx8 CL17 at 1.2V

This single-rank by eight organisation with CL17 latency matches the OEM timing the QNAP firmware expects. The JEDEC-standard 1.2V operation ensures compatibility with the platform's memory controller. Systems requiring dual-rank modules, lower latency bins or 1.35V operation will not work correctly with this module. Backward compatibility with 2133MHz buses is supported.

How it compares

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

Price $43.99
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 $5.50 per GB
Cheaper than about 70% 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 number2U4D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsQNAP TS-677
QNAP TS-832PXU
QNAP TS-832PXU-RP
QNAP TS-832XU
QNAP TS-832XU-RP

Other versions of this model

5 more in the same range

Questions about this item

How can I confirm the module is running at 2400MHz CL17 after installing it in my TS-832XU?

Open the QNAP system information page or BIOS; the memory section should report DDR4 2400 (PC4-19200) with a CAS latency of 17 for the new module.

What comes in the package and do I need any extra parts to fit it into a TS-677?

The box contains one 8GB 288-pin DDR4 UDIMM; no additional brackets, cables or tools are required for installation.

Should I pick the 8GB 1Rx8 CL17 stick or look for a different rank or latency for my TS-832PXU?

This 8GB 1Rx8 CL17 module matches the QNAP part numbers RAM-8GDR4A0-UD-2400 and RAM-8GDR4A1-UD-2400, so it is the correct specification for those models.

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