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Green bare circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR3L 1866MHz CL13 1.35V desktop RAM

SKU CH-DS3D-M9NWP

A 4 GB DDR3L desktop DIMM running at 1866 MHz with CL13 latency and 1.35 V low-voltage operation

  • Total capacity4 GB
  • Rated speedDDR3L 1866(PC3L 14900)
  • ChipsetMicron Chipset
  • CAS latencyCL13
  • Tested speed1866
  • Rated voltage1.35 V
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR3L 1866 MHz speed delivers responsive data throughput
  • CL13 latency keeps access times tight for smooth operation
  • 35 V low-voltage design reduces power draw and heat
  • 240-pin unbuffered DIMM fits standard desktop memory slots

A-Tech 4GB DDR3L 1866MHz module

This A-Tech module is a 4GB DDR3L desktop DIMM built as a compatible replacement for the Micron MT8KTF51264AZ-1G9E1. It targets users who need a direct, tested swap for that specific part number in an existing system.

4GB capacity and 1866MHz headroom

The single 4GB rank runs at 1866MHz with CL13 latency at 1.35V, providing a straightforward upgrade for lighter workloads and older platforms. Capacity limits appear quickly with modern multitasking or larger datasets, so the module suits maintenance or modest expansion rather than heavy production use.

Unbuffered non-ECC design with Micron chipset

The stick uses a Micron chipset in an unbuffered, non-ECC layout without a heat spreader, keeping the physical profile simple for standard 240-pin desktop slots. No bundled software or accessories are included; the value rests on component-level testing and the manufacturer’s lifetime warranty coverage.

How it compares

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

Price $15.99
Cheaper than about 92% 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 $4.00 per GB
Cheaper than about 84% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Micron
Model nameMT8KTF51264AZ-1G9E1
Total capacity4 GB
Performance
Rated speedDDR3L 1866(PC3L 14900)
Processor
ChipsetMicron Chipset
Memory
CAS latencyCL13
Tested speed1866
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Recommended forCompatible Replacement for Micron MT8KTF51264AZ-1G9E1

Questions about this item

Will this 1.35V DDR3L module run in a system that currently uses 1.5V DDR3 sticks?

Yes. DDR3L is backward compatible with standard DDR3 voltage; the module will operate at 1.5V when installed alongside 1.5V memory.

How can I confirm the stick is running at 1866MHz CL13 after I install it?

Check the memory tab in CPU-Z or the BIOS memory information screen — both will report 1866 MT/s and a CAS latency of 13.

Does the package include only the 240-pin DIMM or are there extra accessories?

The box contains the single 4GB unbuffered DIMM; no heat spreader, cables or tools are included.

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