M321R6GA0PB0-CWM - 48GB DDR5-5600 ECC RDIMM | Samsung
부품 번호: M321R6GA0PB0-CWM ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
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.
드롭인 대체품: M321R6GA0PB0-CWM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: M321R6GA0PB0-CWM (동일 폼 팩터 및 풋프린트) — 차이점: Capacity, Module Type, Application, Compatible Platforms, Data Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
M321R6GA3PB0-CWM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
M321R4GA3PB0-CWM
✅ 드롭인✓ 재고 있음
$1033.5938 / 개
데이터시트 보기 →M321R3GA3PB0-CWM
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →M321R8GA0PB0-CWM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
M324R2GA3DB0-CWM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
M324R4GA3PB0-CWM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
M321R6GA0PB0-CWM 사양 (제조사 공개)
| 메모리 유형 | DDR5 SDRAM |
| Module Type | 288-pin RDIMM (ECC Registered) |
| Capacity | 48 GB |
| Configuration | 1 x 48 GB, 1Rx4 (6Gx72) |
| 데이터 속도 | 5600 Mbps (MT/s) |
| Bandwidth Class | PC5-44800 |
| CAS 레이턴시 | 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 |
| 수명 주기 상태 | Mass Production |
M321R6GA0PB0-CWM 인터페이스 및 커넥터
M321R6GA0PB0-CWM에 대해 제조사에서 공개한 인터페이스 목록이 없습니다. 커넥터 및 헤더 세부 정보는 제조사 문서를 참조하십시오.
다음을 참조하십시오: 제조사 문서 전체 확장 헤더 핀아웃 및 커넥터 핀 번호는 다음을 참조하십시오.
일반적인 애플리케이션
M321R6GA0PB0-CWM 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
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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.
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추천 제품 요약
엔지니어링 참조 데이터: M321R6GA0PB0-CWM — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- 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)
설계 노트
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.
규정 준수 정보
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.
