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Single green DDR5 RDIMM module with gold contacts and black chips

SAMSUNG

SAMSUNG M321R8GA0EB0-CWM 64GB DDR5 RDIMM 288-pin PC5-5600B 2RX4 ECC

SKU CH-4V3P-1C994

A 64 GB DDR5 RDIMM with ECC, 288 pins and PC5-5600B speed for server workloads

  • ECC memory protects data integrity for critical workloads
  • 64 GB capacity supports large datasets and virtualization
  • DDR5 technology delivers 5600 MT/s bandwidth for responsive performance
  • RDIMM form factor with 288 pins fits registered server slots
  • Single 64 GB module simplifies upgrade planning

Server-grade DDR5 RDIMM

This Samsung RDIMM delivers 64 GB of DDR5 memory in a single 288-pin module. It is built for servers and workstations that require registered, error-correcting memory for stable operation under sustained workloads.

64 GB capacity and ECC headroom

The 64 GB module provides substantial capacity for virtualisation, database caching and large dataset processing. ECC support detects and corrects single-bit errors, protecting data integrity where non-ECC memory would silently corrupt results.

PC5-5600B interface limits

The PC5-5600B rating sets the maximum standard data rate at 5600 MT/s, defining the bandwidth ceiling for this module. Registered buffering adds a clock cycle of latency, which is the trade-off for the electrical load reduction that allows high-capacity server configurations.

Highlights

  • ECC memory protects data integrity for critical workloads
  • 64 GB capacity supports large datasets and virtualization
  • DDR5 technology delivers 5600 MT/s bandwidth for responsive performance
  • RDIMM form factor with 288 pins fits registered server slots
  • Single 64 GB module simplifies upgrade planning

Specifications

No published specifications for this item yet.

Questions about this item

Can the 64GB DDR5 RDIMM run in a server that also has older DDR5 modules at a lower speed?

The module is rated PC5-5600B; when mixed with slower DDR5 RDIMMs the system will clock all modules to the lowest common speed.

How do I confirm the 64GB RDIMM is recognised with ECC active after installation?

Check the BIOS memory information or OS dmesg output — it should show 64GB per module, 288-pin RDIMM, and ECC enabled.

Does the M321R8GA0EB0-CWM come with a heatsink or any mounting hardware?

The package contains only the single 64GB DDR5 RDIMM; no heatsink, bracket or additional accessories are included.

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