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Four green DDR5 RDIMM modules, 288-pin, no heat spreader

A-Tech

A-Tech 256GB (4x64GB) DDR5 6400 EC8 RDIMM 2Rx4 Server RAM

SKU CH-HKMP-V7H52

Quad-channel kit of four 64 GB DDR5 6400 EC8 registered DIMMs for servers and workstations

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 SDRAM
  • SpeedDDR5 6400 (PC5 51200)
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity across four 64 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • EC8 registered ECC protects data integrity in servers
  • Dual-rank 2Rx4 organisation increases memory density per channel
  • 10 V standard DDR5 voltage for efficient operation

256GB DDR5 6400 EC8 RDIMM kit

This quad-channel kit provides 256GB of DDR5 6400 registered ECC memory across four 64GB modules. It is built for servers and workstations that require 288-pin RDIMM form factor with error-correcting code and registered buffering. The dual-rank x4 organisation suits multi-socket platforms needing high capacity per channel. Desktop and laptop systems cannot use these modules.

Thermals noise and power at 1.1V

Operating at the standard DDR5 voltage of 1.1V, the modules run without a heat spreader and rely on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping to keep power draw predictable under sustained server workloads. No active cooling is included, so adequate case ventilation is required for stable operation.

Build quality and mounting implications

Each module uses major-brand chips and undergoes quality-assurance testing before shipment. The 288-pin RDIMM keying prevents accidental installation in non-ECC or unbuffered slots. Quad-channel population rules apply, so the system manual must be consulted for correct slot order. The kit is covered by a lifetime warranty with US-based technical support available.

Punti di forza

  • 256 GB total capacity across four 64 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • EC8 registered ECC protects data integrity in servers
  • Dual-rank 2Rx4 organisation increases memory density per channel
  • 10 V standard DDR5 voltage for efficient operation

Caratteristiche tecniche

BrandA-Tech
SeriesA-Tech DDR5 Server Memory RAM
ModelA-Tech 64GB 2Rx4 PC5-6400B-R EC8
Part NumberAT64G4D5D6400RD4EC8N11V
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 SDRAM
SpeedDDR5 6400 (PC5 51200)
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitQuad Channel Kit
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesMajor Brand Chips / Error Correcting Technology for Server Systems

Altre versioni di questo modello

altri 2 nella stessa gamma

Stessa famiglia, con memoria, dissipatore o frequenza diversi — confronti prima di decidere.

Domande su questo articolo

How do I install the 288-Pin DDR5 RDIMMs in the correct quad-channel order?

Insert each 64GB module into the slots your motherboard manual designates for quad-channel population, pressing until the ejector clips lock on both sides; the registered buffer and ECC circuitry only initialise when every slot in the set is filled.

What maintenance will the 2Rx4 EC8 modules need over their service life?

No routine maintenance is required; keep the server’s airflow paths clean so the 1.10V DRAM stays within thermal limits, and run the platform’s built-in memory diagnostics whenever firmware is updated.

At what point does sustained write throughput hit the voltage-and-rank limit first?

Under continuous heavy write loads the dual-rank x4 organisation and fixed 1.10V rail reach their thermal ceiling before the 6400 MT/s data rate becomes the bottleneck.

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