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Green DDR5 RDIMM circuit board with 262 gold pins and black Samsung memory chips

A-Tech

A-Tech 256GB DDR5 4800 ECC RDIMM Samsung M321RBGA0B40-CWK Server Memory

SKU CH-7AKS-PZ85F

256 GB DDR5 4800 ECC registered DIMM with CL40 latency and 1.1 V operation

  • Capacity256GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 256 GB capacity supports heavy virtualization workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • ECC RDIMM protects data integrity in servers
  • 1 V operation reduces power consumption
  • 288-pin DIMM fits standard DDR5 server slots

High-Capacity DDR5 Server Memory

This is a 256GB DDR5 ECC registered DIMM built for server and workstation platforms. It operates at 4800MHz with a CAS latency of 40 and runs at the standard 1.10V. The module uses a Samsung chipset and a 288-pin form factor for high-density memory expansion.

Suited For High-Density Registered Slots

It fits systems that require registered ECC DDR5 modules with an 8Rx4 3DS/TSV rank configuration. Builders using unbuffered memory, non-ECC platforms, or motherboards limited to lower capacities per slot cannot use this module.

Key Spec Is 256GB Registered ECC DDR5

The single deciding factor is whether your platform supports a 256GB DDR5 4800 registered ECC DIMM with a 2S4Rx4 (8Rx4 EC8) organisation. Verify the qualified vendor list and maximum rank support before purchasing.

Points forts

  • 256 GB capacity supports heavy virtualization workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • ECC RDIMM protects data integrity in servers
  • 1 V operation reduces power consumption
  • 288-pin DIMM fits standard DDR5 server slots

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Samsung
ModelM321RBGA0B40-CWK, M321RBGA0B40-CWKZH
Capacity256GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2S4Rx4 (8Rx4 EC8)
ChipsetSamsung Chipset
FeaturesM321RBGA0B40-CWK, M321RBGA0B40-CWKZH

Questions sur cet article

Will the 288-pin DDR5 RDIMM fit my server's DIMM slots?

This module uses the standard 288-pin DDR5 DIMM form factor. Verify your motherboard supports DDR5 RDIMMs before installing.

How do I install this 256GB ECC RDIMM correctly?

Power down the server, open the chassis, align the module notch with the slot key, press firmly until the retention clips click. A common error is not seating both ends evenly.

When should I replace this 256GB DDR5 4800 module?

Replace if memory diagnostics report uncorrectable ECC errors, the system fails to POST with the module installed, or capacity no longer meets workload demands.

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