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Green circuit board with black chips, gold edge connector, thin rectangular stick

Transcend

Transcend JetRam 16GB DDR4 2666MHz CL19 SO-DIMM laptop RAM

SKU CH-AYR8-M4Y1K

A 16GB DDR4 SO-DIMM laptop module running at 2666MHz CL19 with 1.2V operation and 260 pins

  • Total capacity16 GB
  • Rated voltage1.2 V
  • Product type260-Pin DDR4 SO-DIMM
  • 16 GB capacity doubles multitasking headroom
  • 2666 MHz speed delivers up to 21 GB/s bandwidth
  • 2 V operation cuts energy use by up to 40 % versus 1.5 V DDR3
  • CL19 latency keeps response tight for everyday workloads
  • 260-pin SO-DIMM fits standard laptop memory slots

16GB DDR4 SO-DIMM laptop upgrade

This Transcend JetRam module adds 16GB of DDR4 memory to a laptop through a standard 260-pin SO-DIMM slot. It runs at 2666MHz with a CAS latency of CL19 and operates at 1.2V. The single stick is suited for users who want a straightforward capacity increase without replacing existing modules.

Suitable for DDR4 laptops needing more RAM.

The module fits laptops that accept DDR4 SO-DIMM memory and have a free 260-pin slot. It will not work in systems that only support DDR3 because the pin layout and voltage are different. Buyers who need ECC error correction or registered memory should look elsewhere, as this is a standard unbuffered non-ECC part.

Sustained operation at 1.2V reduces thermal load

Under continuous workloads the 1.2V nominal voltage keeps power draw lower than 1.5V DDR3 modules, cutting energy use by up to 40 percent. The lower electrical load on the memory controller helps maintain stable temperatures during extended sessions. Transcend screens the DRAM chips with environmental testing to support consistent reliability over long periods.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $143.99
Pricier than about 69% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $9.00 per GB
Pricier than about 75% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Model nameDDR4 SODIMM
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Power
Rated voltage1.2 V

Questions about this item

My laptop has an empty 260-pin DDR4 SO-DIMM slot — will this 16GB module fit directly?

Yes, the module uses the standard 260-pin DDR4 SO-DIMM form factor, so it installs in any compatible laptop slot without adapters.

I plan to keep my existing 1.5V DDR3 memory — can this 1.2V DDR4 module run alongside it?

No, DDR4 and DDR3 use different pin layouts and voltages, so they cannot be mixed in the same system.

After installing the module, how can I verify it is running at the rated 2666MHz speed?

Open Task Manager or a tool like CPU-Z; the memory tab will show the current frequency at 2666MHz if the module is operating as specified.

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