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Four bare green DDR5 RDIMM modules with gold contacts and black chips

A-Tech

A-Tech 384GB (4 x 96GB) DDR5 5600 CL40 1.1V EC8 RDIMM 2Rx4 Server RAM

SKU CH-918R-CZ649

384 GB quad-channel DDR5 kit with four 96 GB ECC registered modules at 5600 MT/s CL40 and 1.1 V

  • Total capacity384 GB (4 × 96 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 384 GB total capacity from four 96 GB modules
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • EC8 registered ECC for server data integrity
  • 2Rx4 dual-rank organisation on 288-pin RDIMM
  • Standard 1.1 V DDR5 voltage for efficient operation

384GB DDR5 5600 Registered ECC Kit

This 384GB kit contains four 96GB DDR5 5600 modules built for servers and workstations that require registered ECC memory. Each module runs at CL40 latency and the standard 1.1V voltage. The EC8 RDIMM design adds error correction and registered buffering for data integrity under heavy workloads. Systems needing maximum registered capacity in a quad-channel layout are the target audience.

Quad-channel RDIMM for DDR5 server platforms

The four modules populate a quad-channel controller on a compatible DDR5 server or workstation motherboard. Registered signalling reduces electrical load on the memory controller, allowing all four slots to run at the rated 5600 MT/s speed. ECC protection corrects single-bit errors and detects multi-bit errors without halting the system. Desktop and laptop platforms cannot use these modules because they require registered DIMM support.

No heat spreaders and no extra software

The modules ship without heat spreaders, leaving the DRAM exposed for airflow-directed cooling in dense server chassis. No software utilities, lighting controllers or configuration tools are bundled; the memory operates entirely through the platform BIOS and memory controller settings. Buyers who want RGB lighting or desktop overclocking profiles should look elsewhere.

How it compares

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

Price $9,265.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 384 GB (4 × 96 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $24.13 per GB
Pricier than about 85% 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 384 GB (4 × 96 GB) 2Rx4 PC5-5600B-R EC8 RDIMM
Part numberAT96G4D5D5600RD4N11 V
Total capacity384 GB (4 × 96 GB)
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Kit configurationQuad Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

How does the CL40 latency affect throughput during sustained heavy workloads?

The CAS latency of CL40 sets the minimum cycle delay for each memory request, which becomes the primary timing bottleneck when the server runs continuous heavy workloads.

What thermal or power behaviour should be expected when all four modules run at 1.1V continuously?

Operating at the standard DDR5 voltage of 1.1V without heat spreaders means the modules rely on chassis airflow for cooling; sustained full-load operation will raise DIMM temperatures proportionally to case ventilation.

Which server platform features are required for this 288-pin EC8 RDIMM kit to function?

The system must support DDR5-5600 registered ECC memory in a quad-channel configuration with 2Rx4 organisation and 288-pin RDIMM slots.

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