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Green printed circuit board with black memory chips and gold edge connector

SAMSUNG

SAMSUNG M321R8GA0PB0-CWM 64 GB DDR5 5600 MHz ECC Registered server accessory

SKU CH-RAMR-PM6VD MPN M321R8GA0PB0-CWM

64 GB DDR5 registered ECC DIMM running at 5600 MHz with CL46 latency and 1.10 V operation

  • Product typeControl Module
  • 64 GB capacity supports large server workloads
  • DDR5 technology delivers 5600 MHz memory speed
  • ECC registered design protects data integrity
  • CL46 latency at 1.10 V operating voltage
  • Single 288-pin DIMM module simplifies installation

Server-grade DDR5 for high-capacity workloads

This 64 GB DDR5 module is built for server platforms that require registered memory with error correction. It operates at 5600 MHz with a CAS latency of 46 and a voltage of 1.10 V. The dual-rank 2Rx4 organisation fits a single 288-pin DIMM slot.

Replaces lower-density or slower registered DIMMs

Upgrading from smaller-capacity registered modules or slower DDR5 speeds is worthwhile when memory bandwidth and capacity per channel become bottlenecks. The PC5-44800 standard supports the throughput needed for virtualisation and database workloads.

Limited to platforms with DDR5 registered-memory

The DDR5 interface and registered signal processing require a compatible server chipset and CPU memory controller. Systems that only accept unbuffered or non-ECC DIMMs cannot use this module. Capacity per slot is fixed at 64 GB.

How it compares

Measured against everything we stock in Drive Cages & Server Add-Ons, at today’s prices. Recalculated every night.

Price $4,678.99
Pricier than about 91% of the 1,119 comparable items (median $74.99).

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeControl Module
Size & build
Shipping weight2.27 kg
Package size305 × 305 × 305 mm

Questions about this item

Will this 288-pin DDR5 module fit my server's registered DIMM slots?

Yes, the 288-pin form factor matches standard DDR5 registered DIMM sockets used in compatible servers.

What BIOS setting is often missed when installing this 5600 MHz ECC registered memory?

Ensure the memory mode is set to registered or RDIMM in the BIOS so the server recognises the ECC registered modules correctly.

How do I know when this 64 GB DDR5 module needs replacement?

Monitor system logs for corrected ECC errors; a rising count indicates the module should be replaced to maintain data integrity.

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