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Green single-rank 288-pin DDR4 DIMM with black chips, no heat spreader

A-Tech

A-Tech 4GB DDR4 2666 CL19 desktop RAM

SKU CH-HX5S-XZS27

4GB DDR4 2666 CL19 desktop DIMM module for HP L26005-001 and L36847-001 systems

  • Capacity4GB
  • SpeedDDR4 2666 (PC4 21300)
  • Tested Frequency2666
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCNo
  • Boosts multitasking with 4GB DDR4 2666MHz capacity
  • Fits HP desktops matching L26005-001 or L36847-001 part numbers
  • Runs at standard 1.20V DDR4 voltage for efficiency
  • Non-ECC unbuffered DIMM installs in 288-pin desktop slots
  • Tested at CL19 latency for reliable operation

HP-Compatible Desktop Upgrade

This A-Tech module is a direct replacement for HP part numbers L26005-001 and L36847-001. It delivers 4GB of DDR4 memory in a single unbuffered DIMM for desktop systems needing a straightforward capacity increase.

Standard Voltage and Latency

The stick runs at the standard DDR4 voltage of 1.20V with a CAS latency of CL19 at 2666 MT/s. Without a heat spreader, it relies on normal case airflow and adds minimal thermal load or acoustic contribution to the system.

Steady Workload Behaviour

Under sustained use the module maintains its rated 2666 frequency and 1.20V level without throttling. The major-brand chipset and factory testing support consistent throughput for extended multitasking or background tasks rather than short bursts only.

Highlights

  • Boosts multitasking with 4GB DDR4 2666MHz capacity
  • Fits HP desktops matching L26005-001 or L36847-001 part numbers
  • Runs at standard 1.20V DDR4 voltage for efficiency
  • Non-ECC unbuffered DIMM installs in 288-pin desktop slots
  • Tested at CL19 latency for reliable operation

Specifications

BrandA-Tech
SeriesCompatible Replacement for HP
ModelL26005-001, L36847-001
Capacity4GB
SpeedDDR4 2666 (PC4 21300)
Tested Frequency2666
CAS LatencyCL19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesL26005-001, L36847-001
Recommend UseCompatible Replacement for HP L26005-001, L36847-001

Questions about this item

Will this 4 GB DDR4 2666 CL19 module fit my HP desktop that uses part numbers L26005-001 or L36847-001?

Yes, the module is built as a direct replacement for those HP part numbers and matches the required DDR4 2666 specification.

Does my motherboard need to support unbuffered non-ECC DDR4 at 1.2 V to use this memory?

Yes, this is a standard 1.2 V unbuffered non-ECC DIMM, so the board must accept that type.

What does the CL19 timing mean for everyday use?

CL19 is the CAS latency at 2666 MHz; it determines how quickly the memory can start a read operation and is typical for standard desktop DDR4.

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