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Green 240-pin DDR3 DIMM circuit board with black memory chips, no heat spreader

A-Tech

A-Tech 4GB DDR3 1866MHz CL13 1.5V CML8GX3M2A1866C9B 1Rx8 Desktop RAM

SKU CH-79KF-4WQHQ

4GB DDR3 1866MHz CL13 desktop DIMM at 1.5V for Corsair CML8GX3M2A1866C9B replacement

  • Total capacity4 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Tested speed1866
  • Rated voltage1.5 V
  • 4GB capacity adds multitasking headroom for everyday desktop workloads
  • 1866MHz DDR3 speed delivers responsive data throughput
  • CL13 latency keeps memory access snappy
  • 5V standard voltage ensures broad motherboard compatibility
  • 240-pin DIMM form factor fits standard desktop slots

A-Tech 4GB DDR3 1866MHz Desktop Module

This A-Tech module is a direct replacement for the Corsair CML8GX3M2A1866C9B part number. It provides a single 4GB DDR3 DIMM built for desktop systems that accept unbuffered, non-ECC memory. The stick runs at the standard 1.5V voltage used by DDR3 platforms.

Tested CL13 latency at 1866MHz speed

Each unit is validated at 1866MHz with a CAS latency of 13 cycles. The 1Rx8 organisation and major-brand chipset deliver the timing profile the original Corsair kit specifies. Quality-assurance testing confirms stable operation at the rated frequency and voltage.

240-pin DDR3 DIMM form factor

The module uses the 240-pin DDR3 DIMM interface required by compatible desktop motherboards. Physical dimensions and notch position match the PC3-14900 standard so the stick seats correctly in the memory slot. Verify your board supports DDR3 1866MHz before ordering.

How it compares

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

Price $19.99
Cheaper than about 88% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $5.00 per GB
Cheaper than about 72% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Corsair
Model nameCML8GX3M2A1866C9B
Total capacity4 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
Tested speed1866
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Recommended forCompatible Replacement for Corsair CML8GX3M2A1866C9B

Questions about this item

Will the 1Rx8 chip layout on this 4GB DDR3 1866MHz module require any future maintenance or replacement?

No, the 1Rx8 configuration uses standard unbuffered DDR3 chips with no moving parts or user-serviceable components, so no maintenance is needed over its service life.

What limit appears first when this CL13 1.5V module runs at 1866MHz continuously?

The CAS latency of 13 cycles at 1.5V sets the timing boundary; sustained workloads hit that latency ceiling before voltage or thermal limits become a factor.

How much heat or noise does this 240-pin DDR3 stick produce during all-day operation?

With no heat spreader and a standard 1.5V DDR3 rating, the module runs silently and generates only modest warmth that normal case airflow handles easily.

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