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Green rectangular DDR4 DIMM module with black chips and gold contacts

A-Tech

A-Tech 4GB DDR4 2133MHz PC4-17000 288-Pin DIMM 1Rx16 desktop RAM

SKU CH-H3V1-TR48C

A 4 GB DDR4 desktop module running at 2133 MHz with 1.2 V operation and 288 pins

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • Tested speed2133
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2133MHz speed matches PC4-17000 system requirements
  • 2V standard voltage reduces power draw and heat
  • 288-pin DIMM form factor fits mainstream desktop motherboards
  • Non-ECC unbuffered design suits consumer desktop platforms

Capacity and form factor

This is a single 4 GB DDR4 DIMM running at 2133 MHz with a PC4-17000 rating. The module uses the standard 288-pin desktop layout and operates at 1.20 V without ECC or registered buffering.

Desktop users needing a direct replacement

It suits owners of systems that accept unbuffered non-ECC DDR4 at this speed and voltage. Buyers whose boards require ECC, registered modules, a different DDR generation or a higher density per slot should look elsewhere.

Verified compatibility with the Hynix part

The stick is tested as a drop-in substitute for the Hynix HMA851U6AFR6N-TF module. That validation means the upgrade installs without configuration changes and restores the original memory capacity and timing profile.

How it compares

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

Price $31.99
Cheaper than about 77% 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 $8.00 per GB
Pricier than about 58% 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
Total capacity4 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
Tested speed2133
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

My motherboard has four 288-pin DDR4 slots and currently runs a single 2133 MHz stick — will this 4 GB module work alongside it?

Yes, this unbuffered non-ECC DDR4 DIMM matches the 2133 MHz PC4-17000 speed and 1.2 V voltage, so it will run at the same frequency and timings as your existing module when installed in a free slot.

After installing the module, how can I confirm the system sees the full 4 GB at 2133 MHz?

Open Task Manager Performance tab or run CPU-Z; both will show 4 GB capacity, DDR4 type, 2133 MHz speed and 1.2 V voltage for the new stick.

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