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Green 288-pin DDR5 RDIMM module with black chips

SAMSUNG

SAMSUNG M321R8GA0BB0-CQK 64GB DDR5 4800 2Rx4 EC8 RDIMM ECC server RAM

SKU CH-TRW0-Q1SRB MPN M321R8GA0BB0-CQK

64 GB DDR5 4800 ECC registered RDIMM with 2Rx4 EC8 organisation and 1.1 V operation

  • Capacity64GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Rank2Rx4
  • FeaturesDDR5 EC8 RDIMM
  • 64 GB capacity supports large server workloads
  • DDR5 4800 MT/s delivers high memory bandwidth
  • ECC RDIMM corrects errors for data integrity
  • 2Rx4 EC8 organisation optimises signal density
  • 1 V operation reduces power consumption

64 GB DDR5 RDIMM for servers

This module provides 64 GB of DDR5 memory in a registered DIMM format with on-die ECC. It is designed for enterprise servers and workstations that require error correction and signal buffering for large-capacity configurations.

1.1 V operating voltage for efficient operation

The module runs at the standard DDR5 voltage of 1.1 V, helping to limit power draw and heat output in densely populated memory channels. Registered buffering reduces electrical load on the memory controller during sustained workloads.

288-pin form factor fits DDR5 server slots

Installation requires a motherboard with DDR5 RDIMM slots and a platform that supports registered ECC memory. The single-module capacity frees additional slots for future expansion while the EC8 organisation optimises signal integrity.

Pontos fortes

  • 64 GB capacity supports large server workloads
  • DDR5 4800 MT/s delivers high memory bandwidth
  • ECC RDIMM corrects errors for data integrity
  • 2Rx4 EC8 organisation optimises signal density
  • 1 V operation reduces power consumption

Especificações

BrandSAMSUNG
ModelM321R8GA0BB0-CQK
Part NumberM321R8GA0BB0-CQK
Capacity64GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Rank2Rx4
FeaturesDDR5 EC8 RDIMM
Peso de envio0.09 kg
Dimensões da embalagem152 × 51 × 13 mm

Perguntas sobre este artigo

How do I install the 288-pin DDR5 RDIMM and what step is often missed?

Align the notch on the module with the key in the server DIMM slot, press down firmly until both ejector tabs click shut, then verify in BIOS that the 4800 MHz speed and ECC are recognised; the step most often missed is seating the module fully so both tabs engage.

What maintenance or replacement will the 64 GB 2Rx4 EC8 module need over time?

No routine maintenance is required; if a correctable error count rises or the module fails POST, replace the individual 64 GB RDIMM — there are no user-serviceable components on the stick.

What limit appears first when the 1.1 V DDR5 4800 RDIMM runs sustained workloads?

The thermal limit of the 2Rx4 EC8 DRAM packages is reached before any electrical limit, so sustained throughput depends on chassis airflow keeping the module within its operating temperature range.

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