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

A-Tech

A-Tech 4GB DDR4 2933MHz PC4-23400 CL21 1.2V Desktop RAM

SKU CH-Q016-94CV8

4GB DDR4 2933MHz desktop DIMM module rated CL21 at 1.2V for Hynix HMA851U6DJR6N-WM replacement

  • Capacity4GB
  • SpeedDDR4 2933 (PC4 23400)
  • Tested Frequency2933
  • CAS LatencyCL21
  • Voltage1.20V
  • ECCNo
  • 4GB capacity adds responsive multitasking headroom
  • DDR4 2933MHz speed accelerates data throughput
  • CL21 latency keeps timing tight
  • 2V operation matches standard DDR4 voltage
  • 288-pin DIMM fits desktop memory slots

Desktop DDR4 Upgrade for Hynix Replacement

This A-Tech module is a direct replacement for the Hynix HMA851U6DJR6N-WM stick. It adds 4GB of DDR4 memory to a desktop system using a standard 288-pin DIMM slot. The upgrade targets users who need to restore or expand capacity in a compatible platform.

Critical Spec: 2933MHz CL21 at 1.20V

The module runs at DDR4 2933 (PC4-23400) with a CAS latency of 21 and the standard 1.20V operating voltage. It is an unbuffered, non-ECC UDIMM built with a major-brand chipset in a 1Rx16 organisation. Your motherboard must support this exact speed, voltage and latency profile for the stick to operate as specified.

No Extras Included

The package contains only the bare memory module; there is no heat spreader, no additional cables and no software utility. Installation is a simple mechanical insertion into a free DIMM slot, after which the system firmware configures the timing automatically.

Pontos fortes

  • 4GB capacity adds responsive multitasking headroom
  • DDR4 2933MHz speed accelerates data throughput
  • CL21 latency keeps timing tight
  • 2V operation matches standard DDR4 voltage
  • 288-pin DIMM fits desktop memory slots

Especificações

BrandA-Tech
SeriesCompatible Replacement for Hynix
ModelHMA851U6DJR6N-WM
Capacity4GB
SpeedDDR4 2933 (PC4 23400)
Tested Frequency2933
CAS LatencyCL21
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesHMA851U6DJR6N-WM
Recommend UseCompatible Replacement for Hynix HMA851U6DJR6N-WM

Perguntas sobre este artigo

What does the 2933 MHz speed mean once the module is installed in a desktop?

The module runs at 2933 MT/s, giving a PC4-23400 bandwidth rating; real-world throughput depends on the platform's memory controller and current workload.

How does the DDR4 interface and PC4-23400 rating limit performance in practice?

DDR4 2933 MT/s with CL21 latency caps the maximum data rate at the PC4-23400 level; the system cannot exceed this without overclocking or faster modules.

What physical slot and clearance does this 262-pin DIMM need to fit?

It requires a standard 288-pin DDR4 DIMM slot and has no heat spreader, so it fits low-profile spaces.

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