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Green rectangular DDR4 DIMM module with black chips and gold edge connectors

A-Tech

A-Tech 8GB DDR4 2666MHz PC4-21300 DIMM 1Rx8 desktop RAM

SKU CH-0HGX-13A71

8GB DDR4 2666MHz DIMM desktop memory module running at 1.2V with 288 pins for AMD and Intel systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • Tested speed2666
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • Boosts multitasking with 8GB DDR4 2666MHz capacity
  • Runs efficiently at standard 1.2V DDR4 voltage
  • Fits standard desktop slots with 288-pin DIMM design
  • Tested for reliable 2666MHz PC4-21300 performance
  • Direct replacement for Hynix HMA81GU6CJR8N-VK modules

8GB DDR4 2666MHz Desktop DIMM

This 8GB DDR4 module runs at 2666MHz with a PC4-21300 rating. It uses the standard 1.20V voltage and an unbuffered non-ECC design. The 288-pin DIMM fits desktop motherboards that support DDR4 memory.

Suits standard desktop upgrades.

Builders replacing a Hynix HMA81GU6CJR8N-VK, HMA81GU6DJR8N-VK or HMA81GU6JJR8N-VK module can use this as a direct replacement. It works with AMD and Intel platforms that accept unbuffered non-ECC DDR4. Systems requiring ECC error correction or registered buffered memory cannot use this module.

1Rx8 single-rank organisation

The memory is organised as 1Rx8, meaning a single rank of eight-bit wide chips. This rank structure affects how the memory controller addresses the module and can influence maximum capacity per channel on some platforms. Check your motherboard documentation to confirm 1Rx8 support before purchasing.

How it compares

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

Price $55.99
Cheaper than about 62% of the 3,647 comparable items (median $90.99).
Total capacity 8 GB
Lower than about 60% of the 3,251 comparable items (median 16 GB).
Price per GB $7.00 per GB
Typical for this category: the median of 3,251 items is $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
Total capacity8 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
Tested speed2666
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

What bandwidth does the DDR4 2666 PC4-21300 interface cap at in practice?

The PC4-21300 rating means the module transfers up to 21 300 MB/s at its tested 2 666 MHz speed.

Will the 288-pin DIMM fit my desktop motherboard slot?

Yes, the stick uses the standard 288-pin DDR4 DIMM form factor found on virtually all current desktop boards.

How do I install the module, and what step do people often miss?

Align the notch with the slot key, press straight down until both side clips snap shut — the click is the step many forget.

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