M321R6GA0PB0-CWM - 48GB DDR5-5600 ECC RDIMM | Samsung
Référence : M321R6GA0PB0-CWM ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $340 | $340,00 |
| 10 | $326 | $3 260,00 |
| 100 | $312 | $31 200,00 |
| 500 | $298 | $149 000,00 |
| 1 000 | $285 | $285 000,00 |
M321R6GA0PB0-CWM Présentation
A registered DIMM (RDIMM) is a server-class memory module that buffers address and command signals through a registering clock driver, reducing electrical load on the memory controller and enabling higher capacities and densities than unbuffered UDIMMs. RDIMMs sit within the memory module hierarchy (DRAM IC -> rank -> module -> memory subsystem) and are the standard main-memory building block for enterprise servers and workstations.
Key features include 48GB single-rank capacity in a x4 configuration, 5600 Mbps data rate compliant with the JEDEC DDR5 specification, on-die ECC combined with side-band ECC for data integrity, and a low 1.1V operating voltage that reduces power per bit compared with DDR4 RDIMMs. The CWM speed bin corresponds to the 5600 MT/s mainstream server grade.
Architecturally, DDR5 moves the power management from the motherboard to an on-module PMIC and doubles bank groups while halving the channel width to two independent 40-bit subchannels per DIMM. The x4 device organization combined with register-based buffering improves signal integrity at 5600 MT/s, while the on-die ECC of DDR5 DRAM corrects internal single-bit errors transparently.
Typical applications include midrange rack servers, virtualization hosts running intermediate VM workloads, dense blade systems, and storage controllers, where 48GB per DIMM maximizes capacity per slot and the 5600 MT/s rate feeds modern Xeon and EPYC memory controllers.
When designing a system configuration, always verify RDIMM support in the platform QVL, populate channels in matched sets, and never mix RDIMMs with LRDIMMs or UDIMMs on the same channel.
This page synthesizes distributor inventory, same-slot alternatives, and practical deployment notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour M321R6GA0PB0-CWM — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec M321R6GA0PB0-CWM (même facteur de forme et même empreinte) — différant par Capacity, Module Type, Application, Compatible Platforms, Data Rate.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
M321R6GA3PB0-CWM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M321R4GA3PB0-CWM
✅ Remplacement direct✓ En stock
$1033.5938 / unité
Voir la fiche technique →M321R3GA3PB0-CWM
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →M321R8GA0PB0-CWM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M324R2GA3DB0-CWM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M324R4GA3PB0-CWM
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
M321R6GA0PB0-CWM Spécifications (publiées par le fabricant)
| Type de mémoire | DDR5 SDRAM |
| Module Type | 288-pin RDIMM (ECC Registered) |
| Capacity | 48 GB |
| Configuration | 1 x 48 GB, 1Rx4 (6Gx72) |
| Débit de données | 5600 Mbps (MT/s) |
| Bandwidth Class | PC5-44800 |
| Latence CAS | CL46 |
| Operating Voltage | 1.1 V |
| Form Factor | 288-pin DIMM |
| ECC | Yes (ECC Registered, on-die ECC) |
| DRAM Organization | 20 x FBGA 6Gb x4 DDR5 DRAM |
| Ranks | Single rank (1Rx4) |
| Application | Server |
| Product Colour | Green |
| Packaging | Bulk |
| Statut du cycle de vie | Mass Production |
Interfaces et connecteurs du M321R6GA0PB0-CWM
Aucune liste d'interfaces publiée par le fabricant n'est disponible pour le M321R6GA0PB0-CWM. Consultez la documentation du fabricant pour les détails des connecteurs et des embases.
Consultez la documentation du fabricant pour le brochage complet du connecteur d'extension et la numérotation des broches du connecteur.
Applications typiques
M321R6GA0PB0-CWM convient pour 6 applications: Midrange Rack Servers, Virtualization Hosts, Dense Blade and Modular Systems, Storage Controllers and Appliances, Workstations and Compute Appliances, Memory Expansion for OEM Builds.
Midrange Rack Servers
The M321R6GA0PB0-CWM fits midrange 1U/2U rack servers that use 16 to 24 DDR5 DIMM slots per socket with RDIMM-only support. Its 48GB single-rank 1Rx4 organization maximizes capacity per slot while leaving headroom on the memory bus, and the 5600 MT/s rate delivers up to 44.8 GB/s theoretical bandwidth per module to feed modern Xeon and EPYC memory controllers. Deployed in matched channel sets, these modules let a two-socket node reach 1.5-2TB of main memory. Because DDR5 splits each DIMM into two independent 40-bit subchannels, concurrent reads from both subchannels improve effective utilization over DDR4 at the same slot count, benefiting database and consolidation workloads typical of midrange racks.
Recommandé
Virtualization Hosts
Virtualization hosts running intermediate VM workloads are the primary target stated by Samsung channel distributors for the M321R6GA0PB0-CWM. Hypervisor memory overhead (per-VM metadata, shadow structures, and ballooning reserves) grows with VM count, so 48GB per DIMM allows dense VM-per-slot ratios without filling every slot. The 5600 MT/s data rate with CL46 latency keeps memory access latency low under concurrent VM scheduling, and DDR5 on-die ECC contains single-bit errors transparently, protecting long-running guest uptime. Populating 8-12 of these modules per socket provides hundreds of GB per host while preserving empty slots for later expansion, a common pattern in VMware and Proxmox midrange clusters.
Recommandé
Dense Blade and Modular Systems
Dense blade chassis and modular server bricks are constrained by slots and thermal budget, making high-capacity single-rank RDIMMs valuable. The M321R6GA0PB0-CWM's 48GB in one 288-pin slot at 1.1V keeps per-module power moderate - DDR5's on-module PMIC and reduced I/O voltage lower energy per bit versus DDR4 equivalents, easing airflow design in sealed blade trays. The 1Rx4 organization presents a lighter electrical load to the register than dual-rank alternatives, helping signal integrity at 5600 MT/s in high-population boards. System designers can mix these 48GB modules with Samsung 24GB/32GB siblings to tier capacity across blade bays while maintaining uniform speed bins across the platform.
Recommandé
Storage Controllers and Appliances
Enterprise storage controllers use registered DDR5 memory for cache and metadata, where capacity and data integrity dominate. The M321R6GA0PB0-CWM provides 48GB per slot with ECC registration and on-die error correction, aligning with storage firmware that assumes server-grade memory. Its x4 device organization offers finer error granularity than x8 parts, valuable when a cache write loss corrupts filesystem metadata. At 5600 MT/s, the module sustains the read-modify-write traffic of RAID engines and deduplication indexes. Storage OEMs value that the M321 family spans 24GB to 64GB in the same slot, allowing one BOM footprint to scale appliance cache tiers from entry to high-end models.
Recommandé
Workstations and Compute Appliances
High-end workstations and GPU compute appliances built on workstation-class DDR5 platforms with RDIMM support use the M321R6GA0PB0-CWM where more than 128GB of memory is required for simulation, rendering, or AI data preprocessing. Single-rank modules can reduce controller load in 8-slot boards, supporting higher stable speeds alongside installed accelerators. The 44.8 GB/s per-module bandwidth feeds CPU-side data staging for GPU clusters, and the 48GB density keeps slot count low, freeing board area for PCIe lanes. The CWM speed bin matches mainstream DDR5-5600 platform validation, simplifying qualification against vendor memory QVLs for volume appliance builds.
Recommandé
Memory Expansion for OEM Builds
OEM integrators building configurable servers use the M321R6GA0PB0-CWM as the mid-capacity SKU in a memory matrix that spans 24GB, 32GB, 48GB, and 64GB Samsung M321/M324 modules, all sharing the 288-pin RDIMM slot and 5600 MT/s bin. This commonality means one chassis design and BIOS memory map covers every capacity option, cutting validation cost. The part's mass-production status and 40,000+ piece distributor stock (as of Aug 24, 2026, Octopart) secure supply for build-to-order pipelines. Integrators should keep rank organization uniform per channel - pairing the 1Rx4 PB0 with 2Rx8 variants is possible on many platforms but must be validated against the platform QVL.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour M321R6GA0PB0-CWM — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | M321R6GA3PB0-CWM | M321R4GA3PB0-CWM | M321R8GA0PB0-CWM | M324R2GA3DB0-CWM | M324R4GA3PB0-CWM |
|---|---|---|---|---|---|---|
| Package | 288-pin RDIMM | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics |
| Capacity | 48 GB | 48 GB | 32 GB | 64 GB | 64 GB | 32 GB |
| Data Rate | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s | 5600 MT/s |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| ECC / Registration | ECC Registered | ECC Registered | ECC Registered | ECC Registered | ECC Registered | ECC Registered |
| Lifecycle Status | Mass Production | Mass Production | Mass Production | Mass Production | Mass Production | Sample |
Principaux différenciateurs
- Single-rank x4 organization for lighter bus load (vs M321R6GA3PB0-CWM)
- Highest capacity density per slot in the 48GB class (vs M321R4GA3PB0-CWM)
- Lower entry cost than 64GB alternatives (vs M321R8GA0PB0-CWM)
Notes de conception
Never mix RDIMMs with LRDIMMs or UDIMMs on the same channel, and keep speed bins uniform when populating all channels. Rank organization also matters: the M321R6GA0PB0-CWM is 1Rx4, while M321R6GA3PB0-CWM is 2Rx8. Many platforms accept mixed-rank populations but throttle or derate speed; always validate against the server vendor QVL before deploying a mixed configuration. DDR5 modules use an on-module PMIC, so 1.1V is generated on the DIMM - do not apply motherboard-level voltage offsets designed for DDR4.
Estimated: a 48GB DDR5-5600 RDIMM at 1.1V draws roughly 4-7W under typical server load depending on utilization, versus about 1-2W idle. In a 24-DIMM dual-socket node this contributes on the order of 100-170W to the thermal budget, so memory airflow and VRM sizing on the on-module PMIC path must account for full-population configurations. These figures are engineering estimates from DDR5 platform typical values, not datasheet limits; consult Samsung validation specifications for exact operating currents.
Server boards must follow the JEDEC DDR5 RDIMM routing rules: matched-length fly-by command/address routing to the registering clock driver, and per-subchannel layout for the two independent 40-bit DDR5 subchannels. Handle modules by the edges and use ESD precautions - the on-module PMIC and register do not protect against assembly mishandling. For upgrades, update BIOS/memory reference code to a release that validates 48GB single-rank x4 maps to avoid training failures at 5600 MT/s.
Informations de conformité
Compliance data not stated in retrieved distributor listings. Samsung server RDIMMs are typically JEDEC DDR5 compliant per vendor descriptions; consult official Samsung documentation for RoHS/REACH declarations.
