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Two green DDR5 RDIMM modules with black heat spreaders and gold contacts

A-Tech

A-Tech 128GB (2x64GB) DDR5 5600 ECC RDIMM 2Rx4 1.1V CL46 server RAM

SKU CH-KWCA-W8RDR

A 128 GB DDR5 5600 ECC registered dual-rank kit (2×64 GB, CL46, 1.1 V, 288-pin) for servers and workstations

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 128GB (2 x 64GB)

  • 128GB dual-channel kit scales memory bandwidth for heavy workloads
  • DDR5 5600 MT/s transfers data faster than previous DDR generations
  • ECC registered design detects and corrects single-bit errors automatically
  • Dual-rank 2Rx4 organisation increases density per DIMM slot
  • Standard 1.1 V operation keeps power draw low in dense servers

128 GB DDR5 ECC RDIMM kit

This 128 GB kit contains two 64 GB DDR5 5600 registered DIMMs with ECC. It is built for servers and workstations that require registered memory and error correction. The modules run at the standard 1.1 V and use a 288 pin form factor.

Suited for DDR5 registered platforms only

These modules work exclusively in systems that support DDR5 registered ECC memory. They will not function in desktop or laptop computers that use unbuffered memory. Buyers who need memory for consumer PCs should look elsewhere.

Dual rank x4 layout with CL46 latency

Each 64 GB module uses a 2Rx4 organisation to provide high density per slot. The kit delivers 128 GB total capacity at DDR5 5600 with CL46 timing. Workloads exceeding this capacity or requiring lower latency will need additional modules or faster rated memory.

How it compares

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

Price $3,808.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $29.76 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 64 GB 2Rx4 PC5-5600B-R EC8
Total capacity128 GB (2 × 64 GB)
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationDual Channel Kit
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Does my server need DDR5 RDIMM slots to use this 288-pin 5600 MHz kit?

Yes — the modules are DDR5 Registered DIMMs that only fit DDR5 RDIMM sockets.

Can I keep existing DDR5 RDIMMs of a different speed installed in the same system?

The system will run all DDR5 RDIMMs at the lowest common speed and voltage.

How can I confirm the kit is running at 5600 MHz with CL46 after installation?

Check the memory speed and timings in the BIOS or a hardware utility such as CPU-Z.

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