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Eight green DDR5 RDIMM sticks in a row

A-Tech

A-Tech 1TB (8x128GB) DDR5 4800 EC8 RDIMM Server RAM

SKU CH-0366-K2R5N

Eight 128 GB DDR5 registered ECC modules at 4800 MHz and CL40 provide 1 TB of server-grade capacity for heavy workloads

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB total capacity from eight 128GB modules
  • DDR5 4800MHz speed with PC5-38400 bandwidth
  • EC8 ECC Registered DIMM for data integrity
  • Quad-rank 3DS/TSV architecture maximises density
  • 1V standard DDR5 voltage for efficiency

1TB DDR5 4800 EC8 RDIMM Kit

This 1TB kit contains eight 128GB DDR5 4800 modules built as EC8 registered DIMMs for servers and workstations. Each module runs at 1.10V with CL40 latency and uses a 2S2Rx4 quad-rank 3DS layout. The registered design adds a buffer that stabilises heavy memory loads in multi-socket systems.

Verify DDR5 RDIMM support and slot count

Confirm that your platform accepts DDR5 registered ECC memory and provides at least eight 288-pin DIMM slots. Desktop and laptop boards cannot use these modules. Check the system manual for supported speeds, maximum capacity per channel and required population rules before ordering.

Fills eight slots in a registered DDR5 server

The kit occupies eight DIMM sockets and delivers 1TB of registered ECC capacity for virtualisation, database or compute workloads. It requires a motherboard with a DDR5 registered memory controller and sufficient electrical loading headroom for quad-rank modules. No desktop or consumer hardware is supported.

How it compares

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

Price $28,576.99
Pricier than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
Price per GB $28.58 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 PC5-4800B-R EC8
Total capacity1 TB (8 × 128 GB)
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2S2Rx4 (4Rx4 3DS/TSV)
Power
Rated voltage1.1 V

Questions about this item

Does the kit ship with eight 128 GB DDR5 RDIMMs or do I need to buy additional modules?

The kit contains eight 128 GB DDR5 4800 EC8 RDIMM modules for a total of 1 TB; no extra modules are required.

When should I choose the 2S2Rx4 quad-rank 3DS version instead of a lower-rank alternative?

Choose the 2S2Rx4 (4Rx4) quad-rank 3DS configuration when your server or workstation memory controller supports quad-rank x4 3DS/TSV modules and you need maximum density per DIMM slot.

What real-world effect does the DDR5 4800 CL40 1.1 V spec have inside a compatible server?

The DDR5 4800 CL40 1.1 V rating delivers the standard DDR5 data rate and latency for registered ECC workloads, letting the memory controller run at its rated 4800 MT/s without overclocking.

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