# Registered DDR5 RDIMM memory module Samsung 64GB 4800MHz 288‑pin 1.1V (1 x 64GB)

**URL:** https://aio.lv/en/product--samsung-m321r8ga0bb0-cqk--4432377
**Data updated:** 2026-01-21 10:56 (EET)
**Category:** Memory (RAM)
**Manufacturer:** Samsung
**Manufacturer code:** M321R8GA0BB0-CQK
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Registered (buffered) Samsung DDR5 RDIMM module with 64 GB capacity and 4800 MHz clock speed, designed for PCs and servers. Single 288‑pin DIMM stick, DDR5 technology, 1.1 V operating voltage and dual-rank (2R) organization. OEM package suited for system builders and upgrades that require high-density, server-compatible memory for multitasking and virtualization.

## Long description

The Samsung M321R8GA0BB0-CQK is a registered 64GB DDR5 288-pin DIMM module operating at 4800 MHz and 1.1 V. Designed for server and high-performance PC use, this memory module includes an on-DIMM register to strengthen clock, command and control signals and offers optional error correction via an additional 8-bit parity signal. The module supports x4 and x8 device organization and up to two ranks per DIMM, allowing common 3DPC (three DIMMs per channel) configurations in compatible systems.
Advantages
The registered design improves signal integrity and stability in multi-module server environments, while DDR5 technology and a 4800 MHz clock speed provide increased bandwidth for concurrent workloads. The availability of 8-bit parity enables error detection to help maintain data consistency. A 288-pin DIMM form factor and standard 1.1 V operation ensure compatibility with DDR5-capable motherboards and servers.
Suitable for
 Servers and data center systems requiring registered DDR5 memory
 Workstations and high-performance PCs used for virtualization or large-memory applications
 Systems configured with multiple DIMMs per channel (3DPC) where register and rank support is needed
Key specifications
 Manufacturer: Samsung
 Model: M321R8GA0BB0-CQK
 Capacity: 64 GB
 Type: DDR5 Registered DIMM (RDIMM)
 Speed: 4800 MHz
 Form factor: 288-pin DIMM
 Voltage: 1.1 V
 Organization: x4 / x8
 Ranks: up to 2 ranks per DIMM
 Error correction: 8-bit parity (optional)
How to use
Install the module into a compatible DDR5 288-pin DIMM slot on a motherboard or server that supports registered (RDIMM) memory and the specified speed and voltage. Follow the system vendor's guidelines for population rules, especially when using multiple DIMMs per channel (3DPC) and when mixing ranks. Ensure BIOS/firmware is updated to recognize DDR5 RDIMM modules and configure memory settings according to the platform documentation.
Usage recommendations
Use this Samsung 64GB DDR5 4800 MHz registered module in systems explicitly supporting RDIMM and 1.1 V operation; avoid mixing registered and unbuffered modules in the same system. For error-sensitive workloads, enable parity/error features per platform support and follow vendor memory population guidelines for optimal performance and reliability.

## Specifications

### Features

| Feature | Value |
|---|---|
| Internal memory | 64 GB |
| Internal memory type | DDR5 |
| Memory clock speed | 4800 MHz |
| Memory form factor | 288-pin DIMM |
| Memory voltage | 1.1 |
| Memory ranking | 2 |
| Component for | PC/Server |
| Memory layout (modules x size) | 1 x 64 |
| Buffered memory type | Registered (buffered) |

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### What is the warranty period?

All Samsung products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Samsung service centers and through AiO.lv

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### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal memory, internal memory type, memory clock speed, memory form factor, memory voltage, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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