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Two green 288-pin DDR5 RDIMM modules without heat spreaders

A-Tech

A-Tech 256GB (2x128GB) DDR5 5600 EC8 RDIMM 2S2Rx4 Server RAM

SKU CH-HH20-4HG14

A 256 GB DDR5 server memory kit with two 128 GB ECC registered modules running at 5600 MHz

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 256GB (2 x 128GB)

  • 256 GB total capacity from two 128 GB modules
  • DDR5 5600 MT/s speed rated at PC5-44800 bandwidth
  • EC8 ECC registered design corrects data errors automatically
  • Quad-rank 3DS/TSV architecture fits dense server configurations
  • Standard 1.1 V DDR5 voltage for efficient operation

Server DDR5 ECC RDIMM kit

This 256 GB kit contains two 128 GB registered DDR5 modules built for server and workstation platforms that require ECC RDIMM memory. Each module uses a 288-pin interface and operates at the standard 1.1 V DDR5 voltage.

Quad-rank 3DS architecture

The 2S2Rx4 organisation stacks four logical ranks per module through 3DS/TSV packaging, letting a two-module kit present eight ranks to the memory controller. This density increases total capacity per channel without adding more DIMM slots.

5600 MT/s throughput headroom

Rated at DDR5 5600 (PC5-44800) with CL46 latency, the kit delivers high bandwidth for virtualisation, database and compute workloads. Systems limited to lower memory speeds or fewer ranks per channel will not be able to use the full capacity or speed.

How it compares

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

Price $7,687.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $30.03 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Product lineA-Tech DDR5 Server Memory RAM
Model nameA-Tech 128 GB 2S2Rx4 PC5-5600B-R EC8
Part numberAT128G2D5D5600RQ4EC8N11 V
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2S2Rx4 (4Rx4 3DS/TSV)
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Will the 128 GB DDR5 modules need any firmware updates or heat-spreader additions later?

The modules have no heat spreader and run at the standard 1.1 V DDR5 voltage; no firmware updates are required for the memory itself.

What is the first limit reached when the 256 GB kit runs at DDR5 5600 continuously?

Sustained operation is limited by the CL46 latency and the quad-rank 3DS architecture, which caps maximum throughput at the rated 5600 MT/s.

How much heat and noise do the two 288-pin RDIMMs produce under all-day load?

With no heat spreader and a low 1.10 V operating voltage, the modules generate minimal heat and add no audible noise beyond the system's own cooling fans.

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