Samsung M321R2GA3BB6-CQK 16G DDR5 4800 RDIMM
The Samsung M321R2GA3BB6-CQK is a 16GB DDR5-4800 registered ECC DIMM (RDIMM) built for enterprise servers, workstations, and data center environments rated for 24/7 operation. It suits buyers provisioning virtualization hosts, cache tiers, and general-purpose server memory where registered ECC modules are required. Note that as a registered module it must be paired with a platform supporting RDIMMs — it cannot be mixed with unbuffered desktop memory or with modules of other generations such as DDR4.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321R2GA3BB6-CQK |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 16GB |
| Speed | DDR5-4800 / PC5-38400 |
| Data Transfer Rate | 4800 MT/s |
| Rank Configuration | 1Rx8 (single-rank; consult your platform’s population rules) |
| ECC Support | Yes (requires ECC-capable server platform) |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (2G × 8) × 10 |
| CAS Latency | CL40 |
| Application | Enterprise Servers, Workstations, Data Centers |
| Operating Environment | 24/7 Enterprise-Class Operation |
Good to know
- Compatibility: this is a DDR5 RDIMM and will not work in DDR4 slots or alongside DDR4 modules, and it is not interchangeable with UDIMM/SODIMM desktop memory. Confirm your server or workstation explicitly lists DDR5 RDIMM support and check the memory population guide before ordering.
- Within the DDR5 RDIMM family, the 16GB 1Rx8 configuration is a common building block for capacity planning — populating multiple channels with identical single-rank modules keeps channel balance predictable, which matters for virtualization and cache-tier workloads.
- Buying tip: for homogeneous expansion later, source modules with the same part number, capacity, rank, and speed grade; verify final operating speed against your platform, as the achieved data rate depends on CPU and motherboard support.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The Samsung M321R2GA3BB6-CQK is a 16GB DDR5-4800 registered ECC DIMM (RDIMM) built for enterprise servers, workstations, and data center environments rated for 24/7 operation. It suits buyers provisioning virtualization hosts, cache tiers, and general-purpose server memory where registered ECC modules are required. Note that as a registered module it must be paired with a platform supporting RDIMMs — it cannot be mixed with unbuffered desktop memory or with modules of other generations such as DDR4.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Brand | Samsung |
| Part Number | M321R2GA3BB6-CQK |
| Memory Type | DDR5 ECC Registered DIMM (RDIMM) |
| Capacity | 16GB |
| Speed | DDR5-4800 / PC5-38400 |
| Data Transfer Rate | 4800 MT/s |
| Rank Configuration | 1Rx8 (single-rank; consult your platform’s population rules) |
| ECC Support | Yes (requires ECC-capable server platform) |
| Operating Voltage | 1.1V |
| Pin Count | 288-pin |
| Module Type | RDIMM |
| Chip Organization | (2G × 8) × 10 |
| CAS Latency | CL40 |
| Application | Enterprise Servers, Workstations, Data Centers |
| Operating Environment | 24/7 Enterprise-Class Operation |
Good to know
- Compatibility: this is a DDR5 RDIMM and will not work in DDR4 slots or alongside DDR4 modules, and it is not interchangeable with UDIMM/SODIMM desktop memory. Confirm your server or workstation explicitly lists DDR5 RDIMM support and check the memory population guide before ordering.
- Within the DDR5 RDIMM family, the 16GB 1Rx8 configuration is a common building block for capacity planning — populating multiple channels with identical single-rank modules keeps channel balance predictable, which matters for virtualization and cache-tier workloads.
- Buying tip: for homogeneous expansion later, source modules with the same part number, capacity, rank, and speed grade; verify final operating speed against your platform, as the achieved data rate depends on CPU and motherboard support.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
