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Green printed circuit board with black memory chips, 288-pin DDR5 desktop memory module, no heat spreader

A-Tech

A-Tech 16GB DDR5 5600 Desktop RAM 1Rx8 CL40 1.10V

SKU CH-55KB-98XX6

16GB DDR5 5600 desktop module with CL40 latency and 1.10V operation for Hynix HMCG78AGBUA081N replacement

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand DRAM IC Chips
  • CAS latency40
  • Tested speed5600
  • Rated voltage1.1 V
  • 16 GB capacity expands multitasking headroom for desktop workloads
  • DDR5 5600 speed delivers 44800 MT/s data rate for faster throughput
  • CL40 latency at 1.10 V balances responsiveness with standard DDR5 power efficiency
  • 1Rx8 single-rank 288-pin DIMM fits standard desktop memory slots without ECC overhead
  • Tested with major-brand DRAM ICs and validated as a compatible replacement for Hynix HMCG78AGBUA081N

What this product is and who it's for

A-Tech 16GB DDR5 5600 desktop memory is a single 288-pin DIMM built as a direct replacement for the Hynix HMCG78AGBUA081N module. It targets owners of compatible desktop systems who need a straightforward capacity increase without changing voltage or platform.

Practical limits of the DDR5 5600 interface

The module runs at the standard 1.10V and delivers a tested frequency of 5600 MT/s with CAS latency 40. As an unbuffered non-ECC DIMM it fits consumer desktop boards that support DDR5 5600; systems locked to lower data rates or requiring registered memory will not accept it.

What this replaces and when the jump is worth it

It replaces the original Hynix 1Rx8 stick in machines that shipped with that part number. The upgrade makes sense when the board has a free slot or when swapping a smaller module for this 16GB unit to raise total memory for heavier multitasking workloads.

How it compares

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

Price $188.99
Pricier than about 66% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
CAS latency 40
Typical for this category: the median of 57 items is 40.
Price per GB $11.81 per GB
Pricier than about 75% of the 3,251 comparable items (median $6.75 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for Hynix HMCG78AGBUA081N
Model nameA-Tech 16 GB DDR5-5600 Desktop RAM Module
Total capacity16 GB
Product colorGreen/Black
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand DRAM IC Chips
Memory
CAS latency40
Tested speed5600
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forCompatible Replacement for Hynix HMCG78AGBUA081N

Questions about this item

Should I pick this 16GB DDR5 5600 module or look for a different capacity?

This is a single 16GB stick; choose it when you have one free 288-pin DDR5 slot and need 16GB total.

What does the 5600 speed rating mean once the module is installed?

It will run at 5600 MT/s with CL40 timings at the standard 1.10V DDR5 voltage.

Is the PC5-44800 label the same as the 5600 speed, and does it limit anything?

PC5-44800 is the peak bandwidth figure for DDR5 5600; the module operates at that data rate with 1Rx8 organisation.

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