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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 PC4-21300 CL19 2Rx8 1.2V 260-Pin SODIMM POSIFLEX TX-5300 memory upgrade

SKU CH-9VQW-0B7YN

16GB DDR4 2666 SODIMM upgrades POSIFLEX TX-5300 Mini-PC with CL19 timing and 1.2V operation

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16GB DDR4 2666 MHz boosts POS system responsiveness
  • CL19 latency at 1.2V keeps power draw low
  • 2Rx8 260-pin SODIMM fits POSIFLEX TX-5300 slot directly
  • Major OEM chips (Samsung, Micron, Hynix) ensure stable operation
  • Non-ECC unbuffered design simplifies drop-in installation

POSIFLEX TX-5300 memory upgrade

This 16 GB DDR4 2666 SODIMM is built for the POSIFLEX TX-5300 Mini-PC. It targets IT teams and system integrators who need a single-slot capacity increase for point-of-sale or kiosk workloads. The module fits the platform's 260-pin SO-DIMM socket without modification.

Single 16 GB module simplifies installation

The package contains one 2Rx8 stick rated at PC4-21300 CL19 and 1.20 V. No heat spreader is included, keeping the profile low for compact chassis. Non-ECC unbuffered operation matches the TX-5300 memory controller, so the upgrade is recognised immediately at POST.

Verify the TX-5300 has a free SO-DIMM slot

Confirm the Mini-PC currently runs DDR4 2666 memory and that the single 260-pin socket is not already populated. The board must accept non-ECC unbuffered modules; registered or ECC sticks will not work. Check the service manual for the exact disassembly steps before ordering.

How it compares

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

Price $66.99
Cheaper than about 73% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $4.19 per GB
Cheaper than about 83% 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 nameNEMIX RAM
Product linePOSIFLEX POS Series Point of Sale Kiosk Memory
Model namePOSIFLEX POS DDR4 2666 MHz Non-ECC Unbuffered SODIMM
Part numberMS21300-628K1
Total capacity16 GB
Product type260-Pin DDR4 SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPOSIFLEX POS
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 260-PIN Non-ECC Unbuffered SODIMM

Questions about this item

Will the 16GB DDR4 2666 SODIMM need any firmware updates or re-seating over time?

No firmware updates are required. The module is unbuffered non-ECC DDR4 at 1.2V. If the POSIFLEX TX-5300 is moved or vibrated, reseat the 260-pin SODIMM to restore contact.

What limit appears first when the POSIFLEX TX-5300 runs this 16GB CL19 module at full load continuously?

The memory controller caps throughput at the JEDEC 2666 MT/s data rate. Latency stays at CL19. The 2Rx8 organisation and 1.2V supply prevent higher frequency or tighter timing operation.

How much heat and power does the 16GB 1.2V DDR4 SODIMM add when the TX-5300 operates all day?

The module draws 1.2V with no heat spreader. Typical DDR4 SODIMM power at 2666 MT/s is a few watts. Passive airflow inside the TX-5300 chassis is sufficient; no extra cooling is needed.

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