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Four green DDR5 RDIMM sticks, bare chips, 288 pins each

A-Tech

A-Tech 128GB (4x32GB) DDR5 5600 ECC RDIMM 2Rx8 server RAM

SKU CH-Z478-A40MZ

A 128GB quad-channel kit of four 32GB DDR5 5600 ECC registered DIMMs with dual-rank x8 organisation and CL46 latency for server and workstation memory upgrades

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth
  • ECC registered design corrects memory errors
  • Dual-rank 2Rx8 organisation increases density
  • 1 V standard DDR5 voltage reduces power

Server-grade DDR5 ECC RDIMM kit

This A-Tech kit supplies 128 GB of DDR5 memory across four 32 GB registered DIMMs. It is built for servers and workstations that require error-correcting code and registered buffering for data integrity.

Upgrade from non-ECC or lower-capacity DDR5

The jump is worth it when workloads demand registered ECC modules at 5600 MHz and the platform supports quad-channel population. Systems limited to unbuffered memory or slower DDR5 speeds cannot use this kit.

128 GB quad-channel capacity at CL46

Four dual-rank 2Rx8 modules deliver high density for virtualisation, database caching and compute-heavy tasks. Headroom ends when the platform caps memory per slot below 32 GB or requires a different registered ECC organisation.

How it compares

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

Price $3,375.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $26.37 per GB
Pricier than about 88% 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 32 GB 2Rx8 PC5-5600B-R EC8
Part numberAT32G4D5D5600RD8EC8N11 V
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Kit configurationQuad Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Does the 288-pin DDR5 RDIMM fit standard server DIMM slots?

Yes, each 32 GB module uses the 288-pin DDR5 RDIMM form factor that matches standard server DIMM sockets.

What is the correct seating order for the quad-channel kit?

Install the four modules in the motherboard's designated quad-channel slots, typically labelled A1, B1, A2, B2, and press until the ejector tabs click.

Will the ECC function require any firmware updates over time?

ECC operates in hardware; no firmware updates are needed for the modules themselves, though platform BIOS updates may improve memory training.

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