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Green bare circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR4 2400 SO-DIMM CL17 1.2V 260-pin memory upgrade

SKU CH-ZABA-5KDX8

4 GB DDR4 2400 SO-DIMM module for QNAP TS-473 and TS-673 NAS servers, CL17 timing at 1.2 V

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4GB DDR4 2400 SO-DIMM boosts NAS responsiveness
  • CL17 latency at 1.2V keeps power draw low
  • 260-pin unbuffered design fits TS-473 and TS-673 bays
  • CMS C105 validation guarantees trouble-free installation
  • 2Rx8 rank structure supports up to 64GB total capacity

Compatible QNAP NAS memory upgrade

This 4GB DDR4 2400 SO-DIMM is built for QNAP TS-473 and TS-673 series NAS units. It arrives as a single unbuffered module rated at 1.2V with CL17 timing. The 260-pin form factor fits the factory memory slots in these servers.

Suitable for capacity expansion only

This module suits owners who need a straightforward capacity increase on supported QNAP models. Buyers who require ECC error correction or registered buffering for data-integrity workloads should look elsewhere. The stick is a 2Rx8 non-ECC design without a heat spreader.

2400 MT/s DDR4 speed rating

The decisive specification is the DDR4 2400 (PC4 19200) speed grade; the system will clock all installed memory to the slowest module present. Verify that your NAS accepts 2400 MT/s DDR4 SO-DIMMs before ordering.

How it compares

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

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% 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 nameCM512642400SO
Total capacity4 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 TS-473, TS-473-4G; TS-473-8G, TS-673, TS-673-4G; TS-673-8G
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the 4 GB DDR4 2400 SO-DIMM arrive alone or with extra parts?

The package contains one 260-pin SO-DIMM module and nothing else.

Should I pick the 2400 MHz CL17 version or the faster 2666 MHz option?

The module is rated at 2400 MHz with CL17 timing; the 2666 MHz figure appears only in the manufacturer highlights for reference.

What does the 2400 MHz rating mean once the stick is installed in my QNAP TS-473?

The NAS will run the memory at up to 2400 MT/s, delivering PC4-19200 bandwidth at 1.2 V with CL17 latency.

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