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Four green circuit boards with black memory chips, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 64GB (4x16GB) DDR4 2400 CL17 SODIMM QNAP TVS-473/673

SKU CH-KHZY-7Z03F

Four 16 GB DDR4 2400 CL17 SODIMM modules for QNAP TVS-473 and TVS-673 NAS servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 64 GB total capacity from four 16 GB modules
  • DDR4 2400 MHz speed rated at PC4 19200
  • CL17 latency with 17-17-17 timing for responsive operation
  • 2 V low voltage reduces power draw and heat
  • Validated for QNAP TVS-473 and TVS-673 series NAS servers

64GB DDR4 kit for QNAP TVS-473 and TVS-673

This 64GB kit contains four 16GB DDR4 2400 SO-DIMM modules built for QNAP TVS-473 and TVS-673 series NAS units. It targets owners who need the maximum supported memory for virtualization, heavy multitasking or large file caches. The kit is not for users whose NAS has fewer than four slots or who require ECC error correction.

Tool-free slot access, match modules for stability

The SO-DIMM slots on these NAS models are user-accessible and require no tools beyond a screwdriver for the chassis cover. Insert each 260-pin stick until the side clips click. The most common issue is mixing this non-ECC CL17 kit with existing modules of different speed or latency; the system will then run all memory at the slowest installed timing.

Verify four empty slots

Confirm your TVS-473 or TVS-673 unit has four SO-DIMM sockets and that no modules are already populated, because this kit fills every slot. The NAS must run a 64-bit operating system to address the full 64GB capacity. Check the current firmware version against QNAP's memory compatibility list for the specific sub-model you own.

How it compares

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

Price $421.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.59 per GB
Cheaper than about 60% 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 nameComputer Memory Solutions
Model nameCM2048642400SO
Total capacity64 GB (4 × 16 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsQNAP NAS Servers TVS-473e, TVS-473-16G; TVS-473-64G; TVS-473-8G, TVS-673-xxx; TVS-673e-xxx, TVS-673/e
In the box
Included items4 Memory RAM Sticks

Questions about this item

How can I confirm the 64GB kit is running at 2400 MHz with CL17 timings after installing it in my QNAP TVS-473e?

Enter the NAS web interface, open the hardware information or system health section, and verify the memory shows 64 GB total, DDR4 2400 speed, and 17-17-17 latency values.

The box lists four 16 GB sticks; do I need any extra brackets, screws or tools to fit them into the TVS-673 SODIMM slots?

No extra hardware is required; the kit contains four 260-pin DDR4 SO-DIMM modules that slot directly into the four memory sockets of the compatible QNAP models.

My TVS-473-8G has two empty slots — should I buy the 64 GB kit or add two 16 GB sticks to the existing pair?

The 64 GB kit provides four matched 16 GB modules (CM2048642400SO) tested together at 2400 MHz CL17, ensuring all four sockets run at the same speed without down-clocking.

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