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Green rectangular DDR4 DIMM module with black memory chips and gold edge connectors, no heat spreader

A-Tech

A-Tech 8GB DDR4 2133MHz CL15 1.2V Desktop RAM

SKU CH-WMW4-PXRP0

8GB DDR4 2133MHz CL15 desktop module replaces Samsung M378A1K43BB1-CPBD0 with 1.2V unbuffered operation

  • Capacity8GB
  • SpeedDDR4 2133 (PC4 17000)
  • Tested Frequency2133
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCNo
  • Boosts multitasking with 8GB DDR4 capacity
  • Runs at 2133MHz CL15 for responsive performance
  • Operates at 1.20V standard DDR4 voltage
  • Unbuffered 288-pin DIMM fits desktop slots
  • Direct replacement for Samsung M378A1K43BB1-CPBD0

Capacity and Compatibility

This 8GB DDR4 module runs at 2133MHz with CL15 latency and 1.2V operation. It is built as a compatible replacement for the Samsung M378A1K43BB1-CPBD0 part number. The unbuffered, non-ECC DIMM targets desktop users who need a direct swap for that specific Samsung stick.

Form Factor and Testing

The stick uses a standard 288-pin DDR4 DIMM layout, noted as 262-pin in the supplier data, and carries Samsung chipset components. No heat spreader is fitted, keeping the profile low for tight slots. Every unit passes A-Tech quality assurance testing before it ships.

Installation and Common Issues

Installation follows the usual desktop DIMM procedure: align the notch, press until the latches click, and verify the system POSTs at 2133MHz. The most frequent issue is a motherboard that defaults to a lower speed or fails to train when the slot population changes. Checking the manual for supported frequencies and seating the module firmly resolves most problems.

Puntos fuertes

  • Boosts multitasking with 8GB DDR4 capacity
  • Runs at 2133MHz CL15 for responsive performance
  • Operates at 1.20V standard DDR4 voltage
  • Unbuffered 288-pin DIMM fits desktop slots
  • Direct replacement for Samsung M378A1K43BB1-CPBD0

Especificaciones

BrandA-Tech
SeriesCompatible Replacement for Samsung
ModelM378A1K43BB1-CPBD0
Capacity8GB
SpeedDDR4 2133 (PC4 17000)
Tested Frequency2133
CAS LatencyCL15
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetSamsung Chipset
Heat SpreaderNo
FeaturesM378A1K43BB1-CPBD0
Recommend UseCompatible Replacement for Samsung M378A1K43BB1-CPBD0

Preguntas sobre este artículo

Will the module ever need a heat spreader added later?

No heat spreader is fitted and the 1.20V DDR4 design runs within JEDEC thermal limits, so no aftermarket cooling is required.

What caps sustained throughput first — the CL15 latency or the 2133 MT/s bus?

The 2133 MT/s data rate is the hard ceiling; CL15 only adds a few nanoseconds per access and does not limit peak bandwidth.

How much power does an 8 GB stick draw when the system runs all day?

At 1.20V the module typically draws 2–3 watts, producing minimal heat and negligible fan noise inside a desktop chassis.

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