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Green rectangular DDR4 DIMM module with black chips and gold edge contacts

A-Tech

A-Tech 16GB DDR4 2666MHz CL19 Desktop RAM 933278-001

SKU CH-KD1T-FY6AG

A 16 GB DDR4 2666 MHz CL19 desktop DIMM built as a compatible replacement for HP part numbers 933278-001, L21496-001, L26007-001 and L40876-800

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Tested speed2666
  • Rated voltage1.2 V
  • 16 GB capacity lets you run more apps simultaneously
  • 2666 MHz DDR4 speed keeps data flowing to the CPU
  • CL19 latency and 1.2 V operation balance responsiveness with efficiency
  • 288-pin DIMM fits standard desktop motherboard slots
  • Tested replacement for HP part numbers 933278-001, L21496-001, L26007-001, L40876-800

HP-Compatible 16GB DDR4 DIMM

This A-Tech module replaces HP part numbers 933278-001, L21496-001, L26007-001 and L40876-800 in desktop systems. It provides 16GB of DDR4 memory running at 2666MHz with CL19 latency. The unbuffered, non-ECC design targets standard desktop workloads.

Fits Standard DDR4 Desktop Slots

The 288-pin DIMM installs in any desktop motherboard that accepts DDR4 2666MHz unbuffered memory at 1.20V. No heat spreader is fitted, so the module occupies minimal vertical space inside the chassis. A single 16GB stick leaves additional slots free for future expansion.

Steady Throughput at 2666MHz

Rated at PC4-21300, the module maintains its specified frequency and CL19 timing during extended sessions. The 1.20V operation keeps power draw consistent with the DDR4 standard. Quality assurance testing validates reliability for sustained multitasking and heavier workloads.

How it compares

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

Price $78.99
Typical for this category: the median of 3,647 items is $90.99.
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $4.94 per GB
Cheaper than about 73% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for HP
Model name933278-001, L21496-001, L26007-001, L40876-800
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Tested speed2666
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for HP 933278-001, L21496-001, L26007-001, L40876-800

Questions about this item

Will the CL19 latency become a bottleneck during long rendering sessions?

The module runs at CL19 latency at 2666 MHz; sustained workloads stay within that timing as long as the system remains stable.

Does the stick run hot or draw extra power when the desktop is on all day?

It operates at the standard 1.2 V DDR4 voltage with no heat spreader, so power draw and thermals stay at baseline DDR4 levels.

My motherboard has 288-pin DDR4 slots — is that the only requirement for this module to work?

Yes, the module is a 288-pin DDR4 DIMM at 1.2 V, non-ECC and unbuffered, matching the standard desktop slot specification.

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