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Green rectangular DDR5 memory module with gold edge contacts and black chips

SAMSUNG

SAMSUNG 16GB DDR5 RDIMM ECC M321R2GA3BB0-CQK

SKU CH-DZ49-NFC3E

Server memory module providing 16 GB of DDR5 ECC registered performance at 4800 MT/s

  • 16 GB DDR5 capacity supports demanding server workloads
  • Registered ECC design protects data integrity in critical applications
  • PC5-4800B bus speed delivers high bandwidth for memory-intensive tasks
  • Single 1RX8 module simplifies capacity planning and upgrades
  • Samsung RDIMM form factor fits standard DDR5 server slots

Server-grade DDR5 memory

This Samsung module delivers 16 GB of DDR5 RDIMM memory with ECC and registered buffering. It is designed for servers and workstations that require error correction and signal stability. The single-module layout simplifies capacity planning in multi-slot systems. Buyers needing non-ECC or unbuffered memory for consumer platforms should look elsewhere.

RDIMM form factor with ECC

The registered DIMM form factor reduces electrical load on the memory controller, allowing larger populations per channel. ECC circuitry detects and corrects single-bit errors to protect data integrity in critical workloads. The module follows the PC5-4800B speed rating for DDR5 platforms. Systems that only accept UDIMM or SO-DIMM modules cannot use this part.

PC5-4800B bus speed

The memory operates at the PC5-4800B data rate, which determines peak throughput on compatible DDR5 server chipsets. Matching this speed to the platform's supported memory bus is the single specification that decides fit. Faster or slower DDR5 modules will not change the bus speed of this module. Verify the motherboard qualified-vendor list before purchase.

Highlights

  • 16 GB DDR5 capacity supports demanding server workloads
  • Registered ECC design protects data integrity in critical applications
  • PC5-4800B bus speed delivers high bandwidth for memory-intensive tasks
  • Single 1RX8 module simplifies capacity planning and upgrades
  • Samsung RDIMM form factor fits standard DDR5 server slots

Specifications

No published specifications for this item yet.

Questions about this item

Does the PC5-4800B DDR5 RDIMM run at 4800 MT/s in a registered server platform?

Yes, the PC5-4800B rating means the module operates at 4800 MT/s when the platform supports that DDR5 speed.

Will this single 16 GB RDIMM fit a standard 288-pin DDR5 server DIMM slot?

The module uses the standard 288-pin RDIMM form factor, so it installs in any compatible DDR5 registered DIMM slot.

What is the correct seating procedure for this ECC registered module, and which step is often missed?

Align the notch, press firmly until both retention clips click, then verify the module height is even; the step often missed is confirming both clips have fully engaged.

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