M321R4GA3EB0-CWM - 32GB DDR5-5600 ECC RDIMM | Samsung
MPN： M321R4GA3EB0-CWM ✓ 啟用中M321R4GA3EB0-CWM 概覽
A Registered DIMM (RDIMM) is a server memory module that buffers address and command signals through a registering clock driver (RCD), reducing electrical load on the memory controller and enabling higher capacities and densities than unbuffered UDIMMs. RDIMMs sit within the DDR5 SDRAM family, which itself belongs to the broader category of volatile DRAM memory used in servers, workstations, and enterprise storage. ECC (Error Correcting Code) functionality detects and corrects single-bit memory errors, which is essential for data integrity in 24/7 datacenter operation.
Key features include DDR5-5600 data rate (PC5-44800), 32GB capacity in a dual-rank configuration that balances density and signal integrity, 1.1V operation that lowers power draw versus DDR4's 1.2V, and on-module ECC registered architecture. DDR5's on-die ECC, bank grouping, and dual 32-bit subchannels per DIMM improve effective bandwidth and reliability at speed.
Technically, the module uses 20 pieces of 2Gx8 FBGA DDR5 DRAM across two ranks, with a registering clock driver managing command/address traffic. The x72-wide data path (64-bit data plus 8 bits of ECC-style check bandwidth) supports the RDIMM error-handling architecture.
Typical applications include Dell PowerEdge C6620, MX760c, R660, and R660xs servers (OEM cross-reference Dell P8XPW), edge compute nodes, low-VM-density hosts, and general-purpose virtualization platforms that list DDR5-5600 RDIMMs on their qualified vendor list.
Design consideration: always verify module presence against the server platform's Qualified Vendor List (QVL), since RDIMM speed may train down if the platform only supports lower DDR5 rates.
This page synthesizes distributor pricing, drop-in alternatives, and platform compatibility data not consolidated in the manufacturer datasheet.
直接替換替代品，適用於 M321R4GA3EB0-CWM — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： M321R4GA3EB0-CWM （相同外形與佔位） — 差異在於 Data Rate, Module Type, Organization, Capacity, ECC.
M321R4GA3EB0-CWY
✅ 直接替換📋 參考替代品（不在目錄中）
M321R4GA3EB2-CWM
✅ 直接替換 ⚠️ 規格未經驗證✓ 有庫存
$1260 / 單位
查看資料表 →M321R4GA0EB2-CWM
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →M321R4GA0EB0-CWM
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →M321R4GA3PB0-CWM
✅ 直接替換 ⚠️ 規格未經驗證✓ 有庫存
$1033.5938 / 單位
查看資料表 →M321R4GA3EB0-CWM 最大額定值與電氣特性
| Capacity | 32 GB |
| 記憶體類型 | DDR5 SDRAM |
| Form Factor | 288-pin DIMM |
| Module Type | ECC Registered DIMM (RDIMM) |
| 資料速率 | 5600 MT/s (PC5-44800) |
| CAS 延遲 | CL46 |
| Operating Voltage | 1.1 V |
| Rank Configuration | 2Rx8 (Dual Rank) |
| 組織 | 4Gx72 |
| DRAM Composition | 20 x FBGA 2Gx8 DDR5 DRAM |
| ECC | Yes (Registered with ECC) |
| Configuration | 1 x 32 GB |
| Bandwidth Class | PC5-44800 (44800 MB/s) |
| Application Segment | Server / Datacenter |
| 品牌 | Samsung Electronics |
| GTIN / EAN | 5715328154490 |
M321R4GA3EB0-CWM standard 腳位配置指南
M321R4GA3EB0-CWM（standard 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： M321R4GA3EB0-CWM.
請參閱 資料表 以查看完整腳位配置。
典型應用
M321R4GA3EB0-CWM 適用於 6 應用s: Dell PowerEdge Rack Servers, Virtualization and VM-Density Hosting, Edge Compute Nodes, Datacenter Memory Upgrades, Enterprise Storage Controllers, High-Performance Workstations.
Dell PowerEdge Rack Servers
The M321R4GA3EB0-CWM is a validated memory option for Dell PowerEdge C6620, MX760c, R660, and R660xs platforms via Dell cross-reference P8XPW. Its DDR5-5600 data rate matches the memory controller speed of 4th/5th Gen Intel Xeon Scalable processors, while the registered ECC architecture protects against single-bit errors that would otherwise crash virtualization hosts. Modules install in 288-pin RDIMM slots with population rules per the platform's memory configuration guide; mixing ranks across channels should follow the QVL. Dual-rank 2Rx8 topology improves effective bandwidth through rank interleaving, delivering PC5-44800 throughput for general-purpose enterprise workloads and scale-out compute nodes.
推薦
Virtualization and VM-Density Hosting
For low-to-moderate VM density hosts, the 32GB capacity of the M321R4GA3EB0-CWM balances cost per GB against slot budget. DDR5-5600 with CL46 latency reduces memory access stalls for hypervisor workloads, while ECC registered signaling maintains uptime across months of continuous operation. Each module consumes one of the server's 288-pin RDIMM slots at 1.1V, keeping per-DIMM power low in dense chassis. Populating channels with identical 2Rx8 modules ensures stable memory training across BIOS updates. Serversupply and ServerOrbit position this module specifically for general-purpose virtualization, edge compute nodes, and infrastructure where certified-compatible, brand-new Samsung silicon with full ECC is required for reliability SLAs.
推薦
Edge Compute Nodes
Edge compute deployments benefit from the M321R4GA3EB0-CWM's combination of DDR5 efficiency and server-grade reliability. The 1.1V operating voltage lowers per-module power versus DDR4 RDIMMs, reducing thermal load in constrained edge enclosures, while the 5600 MT/s data rate feeds modern Xeon-class edge processors without becoming a bandwidth bottleneck. ECC registered operation prevents silent data corruption in remote sites where physical access is infrequent. Corewave Labs and Global Memory Supply position this module for edge compute use, noting its fit for low-VM-density hosts. Standard 288-pin RDIMM slots in short-depth edge servers accept the module directly with no adapters required.
推薦
Datacenter Memory Upgrades
Datacenter capacity upgrades use the M321R4GA3EB0-CWM to move legacy DDR4 platforms toward DDR5 density, with each 32GB dual-rank module filling one channel of 4th/5th Gen Xeon or equivalent EPYC-class systems that support DDR5-5600 RDIMMs. Samsung-original parts preserve OEM warranty chains and QVL validation required by enterprise support contracts, which is why ServerSupply, DirectMacro, and HardDiskDirect stock the exact MPN rather than generic equivalents. Memory population should follow the server vendor's ranked-slot ordering so the two ranks of each module interleave correctly across channels, sustaining the full PC5-44800 bandwidth headroom for database and analytics workloads.
推薦
Enterprise Storage Controllers
Enterprise storage arrays and RAID controllers rely on registered ECC memory to protect metadata and cache contents against bit errors. The M321R4GA3EB0-CWM's ECC registered architecture, built on twenty FBGA 2Gx8 DDR5 DRAM devices in a 4Gx72 organization, provides the check-bit bandwidth storage controllers require for cache coherency and journaling workloads. DDR5-5600 speed keeps cache flush and replication operations responsive, and the 1.1V rail reduces power in always-on arrays. Compatibility must be validated against the storage vendor's qualified parts list, mirroring the QVL discipline used for server RDIMMs, since some controllers enforce strict revision matching across all populated channels.
推薦
High-Performance Workstations
Workstation platforms built on Xeon W-class or Threadripper PRO processors with RDIMM support can use the M321R4GA3EB0-CWM for memory-intensive CAD, simulation, and AI development workloads. The DDR5-5600 dual-rank configuration provides the bandwidth and interleaving that benefit large-dataset rendering and model training, while ECC protects long-running simulations from silent corruption. Note that consumer desktop platforms cannot accept this module - it requires a board with registered DDR5 support. RamQuote confirms the module suits general compute platforms that list DDR5 RDIMMs; verify workstation QVL support, since some entry workstation boards cap training at lower DDR5 speeds.
推薦
推薦產品摘要
工程參考資料，適用於 M321R4GA3EB0-CWM — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | M321R4GA3EB0-CWY | M321R4GA3EB2-CWM | M321R4GA0EB2-CWM | M321R4GA0EB0-CWM | M321R4GA3PB0-CWM |
|---|---|---|---|---|---|---|
| Package | 288-pin DIMM | 288-pin DIMM - same | 288-pin DIMM - same | 288-pin DIMM - same | 288-pin DIMM - same | 288-pin DIMM - same |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics |
| Capacity | 32 GB | 32 GB | 32 GB | 32 GB | 32 GB | 32 GB |
| Module Type | ECC Registered DIMM | ECC RDIMM | ECC RDIMM | ECC RDIMM | ECC RDIMM | ECC RDIMM |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
主要差異化特點
- Samsung-original silicon with OEM QVL validation (對比NEMIX RAM MR44800-328K1 (third-party equivalent))
- DDR5-5600 speed bin at 1.1V (對比M321R4GA0EB0-CWM (family variant))
- Dual-rank 2Rx8 topology (對比Single-rank x8 equivalents in the market)
設計說明
RDIMMs cannot be mixed with UDIMMs or LRDIMMs on the same channel. The M321R4GA3EB0-CWM requires a platform whose memory controller supports registered DDR5-5600; desktop consumer boards will not boot with this module. Always populate channels with identical modules (same MPN family, rank, and speed) per the server vendor's memory population rules to guarantee consistent BIOS memory training and avoid speed down-training.
Server memory channel layout follows the platform vendor's slot-ordering guide. For Dell PowerEdge R660/C6620 systems, install the M321R4GA3EB0-CWM starting with the white-marked slots per the hardware owner's manual. Dual-rank modules consume more electrical margin per channel than single-rank parts, so maximum supported speed may drop when all channels are fully populated with 2Rx8 modules - consult the platform's memory configuration table for the derated speed at full population.
The module operates at the DDR5 standard 1.1V. Per-module power is substantially lower than DDR4 RDIMMs, but full-population configurations multiply consumption: a 16-DIMM server adds dozens of watts from memory alone. Estimated: at roughly 5-8 W per active DDR5 RDIMM (approximate, workload-dependent), a fully populated dual-socket server should budget 80-130 W for memory in thermal and PSU sizing. Verify against the server vendor's power calculator for your exact configuration.
合規資訊
Compliance data not present in provided web sources. Samsung enterprise memory modules are typically RoHS compliant, but this must be confirmed from official Samsung documentation.
