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

A-Tech

A-Tech Supermicro Certified MEM-DR440L-SL01-SO26 4GB DDR4 2666MHz laptop RAM

SKU CH-JDJD-W78V0

4GB DDR4 2666MHz SODIMM laptop memory with CL19 latency and 1.20V operation

  • Total capacity4 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Supermicro Systems
  • Supermicro certified for guaranteed system compatibility
  • Samsung DDR4 2666 MHz module delivers responsive multitasking
  • 4 GB capacity handles everyday workloads smoothly
  • Low 1.20 V operation reduces power draw
  • 260-pin SO-DIMM fits standard laptop slots

Certified Supermicro laptop memory

This 4GB DDR4 SODIMM carries Supermicro certification and uses Samsung components. It runs at 2666MHz with CL19 timing and operates at the standard 1.20V. The unbuffered non-ECC module fits 260-pin slots in compatible Supermicro systems.

Suited for specific Supermicro notebooks

It matches the MEM-DR440L-SL01-SO26 part number exactly, so owners of those validated platforms can install it with confidence. Builders using other laptop brands or desktop motherboards should verify their own memory specifications before purchasing.

Tested modules with lifetime backing

Every stick undergoes quality-assurance testing to confirm reliable operation. A lifetime warranty and US-based technical support are included, giving long-term assurance without extra software or accessories.

How it compares

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

Price $30.99
Cheaper than about 73% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $7.75 per GB
Pricier than about 68% of the 1,886 comparable items (median $5.94 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 nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR440L-SL01-SO26
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Supermicro Systems

Questions about this item

My laptop only has one SO-DIMM slot — can I use this single 4GB module on its own?

Yes, this is a single 4GB stick so it works alone in a lone slot.

I have an older DDR4 2666 CL19 stick already installed — will this CL19 module run at the same timings?

Both are CL19 at 2666 MHz, so the memory controller will apply identical timings to each.

After fitting the module, how can I confirm it is running at 2666 MHz and 1.20V?

Open Task Manager or CPU-Z — the SPD tab shows 2666 MT/s and 1.20 V when the stick is seated correctly.

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