M321R3GA3PB0-CWM vs M321R4GA3PB0-CWM Comparison
Detailed side-by-side comparison of M321R3GA3PB0-CWM by Samsung Electronics and M321R4GA3PB0-CWM by Samsung Electronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Samsung Electronics
M321R4GA3PB0-CWM - 32GB DDR5-5600 ECC RDIMM | Samsung | Servers
M321R4GA3PB0-CWM ✓ ActiveSpecification Comparison
| Parameter | M321R3GA3PB0-CWM | M321R4GA3PB0-CWM |
|---|---|---|
| Brand | Samsung Electronics | Samsung Electronics |
| Category | Memory ICs | EEPROM |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $1,033.59 |
| Memory Type | DDR5 SDRAM | — |
| Module Type | 288-Pin ECC Registered DIMM (RDIMM) | 288-pin RDIMM (Registered DIMM) |
| Capacity | 24 GB | 32 GB (4Gx72) |
| Organization | 3Gx72 | 2Rx8 (Dual Rank, x8) |
| Rank | Single Rank (1Rx8) | — |
| Transfer Rate | 5600 Mbps (PC5-44800) | — |
| CAS Latency | CL46 | CL46 |
| Operating Voltage | 1.1 V | 1.1 V |
| DRAM Configuration | 10 x FBGA 3Gx8 DDR5 DRAM | — |
| ECC Support | Yes (ECC Registered) | — |
| Pins | 288 | — |
| Buffered | Yes (Registered/Buffered) | — |
| Compatible Platforms | Lenovo ThinkSystem SR630 V3, SR650 V3, SR650 V4, SD650 V3 (vendor cross-refs verified) | Intel Xeon Scalable / Emerald Rapids, AMD EPYC servers |
| Application | Server / Data Center | — |
| Consumer PC Compatibility | No (server memory only) | — |
| Lifecycle Status | Mass Production | — |
| Memory Technology | — | DDR5 SDRAM |
| Data Rate | — | 5600 Mbps (PC5-44800) |
| ECC | — | ECC Registered |
| DRAM Composition | — | 20 x 2Gx8 FBGA DDR5 components |
| Pin Count | — | 288 |
| Form Factor | — | 288-pin DIMM |
| Mounting Type | — | Slot (DIMM socket) |
| Compliance | — | JEDEC DDR5 standard |
| Bandwidth | — | 44.8 GB/s per module (PC5-44800) |
| Stock (icDirectory) | — | 34200 pcs (updated Aug 17, 2026) |