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Green rectangular 240-pin DDR3 DIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR3 1866MHz PC3-14900 240-Pin Desktop RAM

SKU CH-W5JM-57493

4 GB DDR3 desktop module running at 1866 MHz with 240-pin DIMM form factor and 1.5 V operation

  • Total capacity4 GB
  • Rated speedDDR3 1866 (PC3 14900)
  • Tested speed1866
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity adds responsive multitasking headroom
  • 1866 MHz DDR3 speed accelerates data throughput
  • 240-pin DIMM fits standard desktop slots
  • 5V operation matches DDR3 default voltage
  • Non-ECC unbuffered design suits consumer motherboards

A-Tech 4GB DDR3 1866MHz DIMM

This A-Tech module is a 4GB DDR3 1866MHz PC3-14900 240-Pin desktop memory upgrade. It runs at the standard 1.50V voltage as an unbuffered non-ECC DIMM. The part is tested at 1866 frequency and built to replace Samsung M378B5173DB0-CMA, M378B5173EB0-CMA and M378B5173QH0-CMA modules. It suits owners of compatible AMD and Intel desktop systems needing a straightforward capacity increase.

Suits DDR3 desktop owners.

The module fits standard desktop boards that accept DDR3 UDIMMs at 1866MHz. It works for users replacing the listed Samsung parts or adding a single 4GB stick to an available slot. Buyers whose systems require ECC error correction or registered buffering should look at something else. Anyone needing a higher total capacity than 4GB per module will also need a different part.

Deciding spec: 240-Pin DDR3 1866MHz UDIMM

The single specification that decides fit is the 240-Pin DDR3 1866MHz unbuffered non-ECC form factor. Your motherboard must support DDR3 DIMMs at this speed and pin count. Verify the supported memory specifications of your system before purchase to ensure compatibility.

How it compares

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

Price $18.99
Cheaper than about 89% 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 $4.75 per GB
Cheaper than about 76% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR3 1866 (PC3 14900)
Memory
Tested speed1866
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.5 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

What does the 1866MHz speed mean once the module is installed?

The module runs at 1866MHz when the motherboard supports that frequency; otherwise it will operate at the highest speed the board allows.

What does the PC3-14900 designation tell me about the interface?

PC3-14900 identifies the DDR3 1866 standard and its rated data rate.

Will the 240-pin DIMM fit my desktop motherboard?

It fits standard DDR3 desktop DIMM slots that accept 240-pin unbuffered non-ECC modules.

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