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

A-Tech

A-Tech 8GB DDR4 2666MHz ECC SODIMM CL19 1.2V 260-Pin

SKU CH-HKWM-TFPZ5

8GB DDR4 ECC SODIMM running at 2666MHz with CL19 latency for microserver upgrades

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for Samsung M474A1K43BB1-CRC
  • ECC protection guards data integrity in critical workloads
  • 2666 MHz DDR4 speed handles demanding server tasks
  • CL19 latency at 1.2 V balances responsiveness with efficiency
  • 260-pin SODIMM fits compatible microserver and workstation slots
  • 8 GB single module simplifies capacity upgrades

8GB DDR4 2666MHz ECC SODIMM

This A-Tech module delivers 8GB of DDR4 memory at 2666MHz with ECC error correction. It targets microserver, server and workstation laptops that require unbuffered ECC SO-DIMMs. The CL19 latency and 1.20V operation match standard DDR4 specifications for compatible platforms.

260-Pin unbuffered ECC fit

The stick uses the 260-Pin DDR4 SO-DIMM form factor and runs at PC4-21300 speed without a heat spreader. It slots directly into notebooks or microservers that accept unbuffered ECC SODIMMs, freeing a standard non-ECC slot for error-correcting memory where the platform supports it.

Suits ECC-capable microserver laptops

Builders needing ECC protection in a compact SO-DIMM will find this module appropriate. Systems that only accept non-ECC memory, require registered DIMMs, or need capacities beyond a single 8GB stick should look at other options.

How it compares

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

Price $66.99
Typical for this category: the median of 2,079 items is $70.99.
Total capacity 8 GB
Lower than about 60% of the 1,886 comparable items (median 16 GB).
Price per GB $8.37 per GB
Pricier than about 72% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Samsung
Model nameM474A1K43BB1-CRC
Total capacity8 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for Samsung M474A1K43BB1-CRC

Questions about this item

How does the CL19 latency affect sustained throughput on this DDR4 2666 ECC SODIMM?

CL19 is the CAS latency at 2666 MHz; it sets the minimum cycle delay for each column access during continuous read or write streams.

What thermal or power behaviour should I expect when this 1.2 V unbuffered ECC module runs all day in a microserver?

The module operates at the standard 1.2 V DDR4 voltage with no heat spreader; power draw stays within JEDEC limits for 8 GB unbuffered ECC SO-DIMMs under sustained load.

Which slot and platform features must my system already provide for this 260-pin ECC SODIMM to function?

A DDR4 SO-DIMM slot wired for ECC unbuffered operation and a memory controller that supports 2666 MHz PC4-21300 with 1Rx8 organisation.

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