Samsung Electronics

M321R2GA3EB0-CWM - 16GB DDR5-5600 ECC RDIMM | Samsung

부품 번호: M321R2GA3EB0-CWM ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.1 V Vdss 5600 MT/s (PC5-44800) Speed DDR5 SDRAM Memory
시작가 $72 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-03
볼륨 가격
수량 단가 합계
1 $89 $89.00
10 $85 $850.00
100 $80 $8,000.00
500 $76 $38,000.00
1,000 $72 $72,000.00
ℹ️ 모든 가격은 USD 기준입니다

M321R2GA3EB0-CWM 개요

The Samsung M321R2GA3EB0-CWM is a 16GB DDR5-5600 ECC Registered DIMM (RDIMM) server memory module with a 288-pin form factor, 1Rx8 single-rank organization, 1.1V operating voltage, and CL46 latency, built from ten FBGA-packaged 2Gx8 DRAM dies.

A Registered DIMM (RDIMM) is a memory module type that adds a register between the memory controller and the DRAM devices. The register buffers address and command signals, reducing electrical loading on the controller and allowing higher-capacity, more densely populated memory subsystems. Within the memory hierarchy, an RDIMM sits in the enterprise server class: DDR5 SDRAM -> registered/buffered module -> memory subsystem for servers and workstations. Unlike unbuffered UDIMMs used in desktops, RDIMMs are required by most server platforms for signal integrity at scale.

Key features of the M321R2GA3EB0-CWM include 5600 MT/s (PC5-44800) data transfer rate, ECC (Error Correcting Code) for single-bit error correction in always-on server environments, and on-module PMIC power management introduced with the DDR5 standard. The x8 DRAM organization with single rank (1Rx8, 2Gx72) keeps memory bus loading low, enabling high-speed operation on dual-socket and single-socket platforms supporting DDR5-5600.

Architecturally, the module uses DDR5 DRAM with 10 FBGA 2Gx8 devices per the manufacturer configuration. DDR5 doubles bank groups versus DDR4, lowers operating voltage from 1.2V to 1.1V, and moves power management onto the module itself, improving granularity and efficiency in dense server chassis. ECC together with registered signaling targets enterprise reliability targets for virtualization and databases.

Typical applications include entry-level virtualization hosts, edge compute nodes, small-scale servers, and workstations certified for RDIMM operation. The module is compatible with platforms from vendors such as Dell and HPE that support DDR5-5600 RDIMMs.

Design consideration: verify your platform explicitly lists PC5-44800 RDIMM support; DDR5-5600 RDIMMs will downclock on platforms limited to lower JEDEC speeds, and mixing ranks or speeds across channels can reduce system bandwidth.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

드롭인 대체품: M321R2GA3EB0-CWM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: M321R2GA3EB0-CWM (동일 폼 팩터 및 풋프린트) — 차이점: Form Factor, Module Type, ECC, Speed, CAS Latency.

Samsung Electronics
Form Factor: 288-pin DIMM
Module Type: 288-pin DIMM, ECC Registered (RDIMM)
Speed: 6400 MT/s (DDR5-6400)
비교 대상: M321R2GA3EB0-CWM →
Samsung Electronics
Form Factor: DIMM (288-pin DDR5)
Module Type: RDIMM (ECC Registered DIMM)
비교 대상: M321R2GA3EB0-CWM →
Samsung Electronics
Form Factor: EC8 RDIMM
Module Type: 288-pin RDIMM (ECC Registered)
ECC: Registered with ECC
비교 대상: M321R2GA3EB0-CWM →
Samsung Electronics
Form Factor: 288-pin RDIMM
Module Type: RDIMM (Registered DIMM with ECC)
ECC: Yes (Registered, 64+8)
비교 대상: M321R2GA3EB0-CWM →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

M321R2GA3EB2-CWM

✅ 드롭인
Samsung Electronics
📦 288-pin RDIMM
16 GB · DDR5 SDRAM · RDIMM (ECC Registered DIMM) · 5600 MT/s · PC5-44800 · CL46 · 1.1 V · Single Rank (1Rx8)

✓ 재고 있음

$94 / 개

데이터시트 보기 →

NEMIX RAM 16GB DDR5-5600 1Rx8 RDIMM

✅ 드롭인
📦 288-pin RDIMM
third-party JEDEC-compliant equivalent, same 16GB DDR5-5600 PC5-44800 ECC Registered 1Rx8 1.1V CL46 specs; lifetime warranty vs Samsung standard warranty

📋 참조 대체품 (카탈로그에 없음)

A-Tech 16GB DDR5-5600 1Rx8 ECC RDIMM

✅ 드롭인
📦 288-pin RDIMM
third-party equivalent, same 16GB DDR5-5600 PC5-44800 ECC Registered 1Rx8 288-pin specs

📋 참조 대체품 (카탈로그에 없음)

M321R2GA3EB0-CWM 사양

Capacity 16 GB (2Gx72)
메모리 유형 DDR5 SDRAM
Module Type 288-pin ECC Registered DIMM (RDIMM)
Speed 5600 MT/s (PC5-44800)
CAS 레이턴시 CL46
Operating Voltage 1.1 V
Rank / Organization 1Rx8 (single rank, x8)
DRAM Configuration 10 FBGA 2Gx8 DRAM devices
ECC Yes (ECC Registered)
핀 수 288
Form Factor DIMM (server RDIMM)
Application Class Server / Data Center
Standard Compliance JEDEC DDR5 RDIMM

M321R2GA3EB0-CWM standard 핀 구성 가이드

M321R2GA3EB0-CWM(standard 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.

M321R2GA3EB0-CWM의 standard 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: M321R2GA3EB0-CWM.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

M321R2GA3EB0-CWM 적합 용도: 6 애플리케이션s: Entry-Level Virtualization Servers, Edge Compute Nodes, Small-Business Database Servers, High-Performance Workstations, Data Center Memory Expansion, Network Appliance Memory.

🖥️

Entry-Level Virtualization Servers

The Samsung M321R2GA3EB0-CWM is well suited to entry-level virtualization hosts because its ECC Registered interface corrects single-bit memory errors that would otherwise crash long-running virtual machines, and its 16GB per-module density allows 128GB or larger pools across 8 DIMM slots. The registered buffer reduces electrical loading on the memory controller at 5600 MT/s, maintaining signal integrity with multiple modules per channel. In a dual-socket Xeon Scalable or EPYC platform, populating all channels with 1Rx8 modules delivers balanced bandwidth for consolidating several VMs per host. The 1.1V operation keeps per-module power low, improving rack density and cooling overhead.

🌐

Edge Compute Nodes

Edge compute appliances benefit from the M321R2GA3EB0-CWM's combination of DDR5-5600 bandwidth and 1.1V efficiency, since edge enclosures often have constrained cooling and power budgets. The 16GB 1Rx8 configuration provides a cost-efficient memory footprint for inference, caching, and protocol translation workloads, while ECC Registered operation ensures unattended reliability in remote sites where physical access is rare. The module's JEDEC-standard 288-pin RDIMM interface drops directly into server-class edge platforms from Dell, HPE, and Supermicro. At 5600 MT/s, it keeps pace with modern accelerator cards' host-memory demands for data preprocessing before local analytics.

🖥️

Small-Business Database Servers

Database workloads such as MySQL, PostgreSQL, and small SQL Server instances are memory-latency and capacity sensitive, making the M321R2GA3EB0-CWM a natural fit for small-business database hosts. Its CL46 latency at 5600 MT/s and single-rank organization deliver low, consistent access times for OLTP query patterns, while 16GB per module scales a 2-socket platform to 256GB without populating every slot, preserving upgrade headroom. ECC protects database integrity against cosmic-ray-induced single-bit flips, a documented cause of silent data corruption. The registered interface maintains timing margin when all eight channels are loaded in dense memory configurations.

🔧

High-Performance Workstations

Workstation platforms built on server-class chipsets that accept RDIMMs can use the M321R2GA3EB0-CWM for memory-intensive workloads such as CAD, simulation, and 4K/8K video editing. DDR5-5600 provides roughly 1.5x the peak bandwidth of DDR4-3200 per channel, directly reducing render times and dataset swap stalls. The 16GB capacity per module enables 128GB-class configurations in four slots, sufficient for large assemblies and timeline editing. ECC adds a stability layer that consumer UDIMM platforms lack, valuable for multi-hour render jobs where a memory error would discard progress. Verify the workstation board explicitly lists DDR5 RDIMM support before purchase.

🖥️

Data Center Memory Expansion

For data centers expanding existing DDR5 fleets, the M321R2GA3EB0-CWM slots into spare RDIMM sockets to raise per-node memory without replacing the platform. Its PC5-44800 rating matches the native speed of current-generation Xeon Scalable and EPYC 9004-class memory controllers, so no downclocking penalty is incurred. The 1Rx8 organization presents low bus loading, allowing two DIMMs per channel in many platforms for capacity scaling. Samsung's enterprise-grade DRAM and the module's on-module PMIC support the power granularity and telemetry that DDR5 server platforms expose for predictive maintenance, reducing unplanned downtime in virtualized fleets.

🌐

Network Appliance Memory

Network and security appliances - SD-WAN gateways, firewalls, and load balancers built on server-class CPUs - rely on fast memory for flow tables, TLS session state, and packet buffering. The M321R2GA3EB0-CWM's 5600 MT/s rate sustains high packet-per-second workloads where memory bandwidth bounds throughput, and its ECC Registered interface meets the 24/7 uptime requirements of network infrastructure. The 16GB 1Rx8 configuration balances cost against the 64-128GB footprints typical of mid-range appliances. JEDEC-standard RDIMM form factor simplifies second-source procurement across appliance production runs from multiple ODM builds.

What are the key specifications of M321R2GA3EB0-CWM?
The Samsung M321R2GA3EB0-CWM is a 16GB DDR5-5600 ECC Registered DIMM with 288-pin RDIMM form factor, 1Rx8 single-rank x8 organization, 1.1V operating voltage, and CL46 latency. Per distributor listings, it is built from 10 FBGA 2Gx8 DRAM devices and rated PC5-44800 bandwidth. These parameters make it a JEDEC-standard DDR5 server memory module for platforms supporting DDR5-5600 RDIMMs.
What is the price of M321R2GA3EB0-CWM?
XAIPART lists the Samsung M321R2GA3EB0-CWM at $89.00 for quantity 1 as of 2026-09-04, with tiered discounts to $72.00 at 1000 units. Actual market pricing varies with DRAM spot prices; distributors such as Server Supply, Win Source, and Fusion Worldwide also list this part, so obtaining multiple quotes is recommended for volume purchases.
Where to buy M321R2GA3EB0-CWM online?
The M321R2GA3EB0-CWM can be purchased from XAIPART as well as distributors including Server Supply (listed as in stock), Win Source, Fusion Worldwide, Newegg, and Amazon resellers. Server Supply lists the part as brand new and in stock as of the data collection date. For volume orders, request quotes from Win Source or Fusion Worldwide, which specialize in enterprise memory allocation.
Is M321R2GA3EB0-CWM in stock and what is the lead time?
Server Supply lists the Samsung M321R2GA3EB0-CWM as in stock for immediate shipment, and retail channels such as Newegg and Amazon list compatible stock. Lead times on XAIPART depend on quantity; single units typically ship quickly while volume allocation may require a quote. Always confirm current stock with the distributor at order time, as server DRAM inventory moves quickly.
What is the difference between M321R2GA3EB0-CWM and M321R2GA3EB2-CWM?
The M321R2GA3EB0-CWM and M321R2GA3EB2-CWM are both Samsung 16GB DDR5-5600 (PC5-44800) ECC Registered DIMMs in the 288-pin RDIMM form factor with 1Rx8 organization. The suffix digits identify die revision/build variant in Samsung's part numbering. Both are functionally interchangeable in most platforms, but server vendors may qualify specific revisions, so verify the approved vendor list before mixing.
What is the best drop-in replacement for M321R2GA3EB0-CWM?
The best same-brand drop-in replacement is the Samsung M321R2GA3EB2-CWM, which matches capacity (16GB), speed (DDR5-5600/PC5-44800), form factor (288-pin ECC RDIMM), rank (1Rx8), and voltage (1.1V). Third-party JEDEC-compliant alternatives such as NEMIX RAM 16GB DDR5-5600 1Rx8 RDIMM are also marketed as compatibility-tested drop-in replacements for this Samsung part number.
What is the best third-party equivalent for M321R2GA3EB0-CWM?
The most widely listed cross-brand equivalent is the NEMIX RAM 16GB DDR5-5600 PC5-44800 ECC Registered RDIMM (1Rx8, 1.1V, 288-pin, CL46), which is explicitly marketed as compatible with the Samsung M321R2GA3EB0-CWM and JEDEC compliant. A-Tech also offers a 16GB DDR5-5600 1Rx8 EC8 RDIMM replacement. Any equivalent must match ECC Registered type, 1Rx8, and DDR5-5600 to drop in without platform requalification.
Is M321R2GA3EB0-CWM compatible with Dell and HPE servers?
Distributor listings indicate the M321R2GA3EB0-CWM is compatible with Dell, HPE, and similar platforms that support DDR5-5600 ECC Registered DIMMs, per corewavelabs compatibility data. Because server OEMs qualify memory by part number, always check your specific server model's memory compatibility list (QVL) or the OEM configurator before purchasing, as some platforms cap speed below 5600 MT/s.
When should I choose M321R2GA3EB0-CWM over UDIMM memory?
Choose the M321R2GA3EB0-CWM RDIMM whenever your server platform requires registered memory - nearly all Intel Xeon Scalable and AMD EPYC server boards mandate RDIMMs, not UDIMMs. The registered interface buffers address/command signals for signal integrity at 5600 MT/s, and ECC protects against single-bit errors in always-on operation. UDIMMs will not boot in RDIMM-only sockets, so module type is a hard platform constraint, not a preference.
Can a 1Rx8 module be mixed with 2Rx8 modules in the same server?
Mixing ranks is generally possible on modern DDR5 platforms but often reduces maximum supported speed per channel and may unbalance memory bandwidth. For best performance with the M321R2GA3EB0-CWM (1Rx8), populate all channels with identical rank-count modules of the same speed and capacity. Consult the server vendor's population rules, which specify valid mixed configurations and resulting derated speeds.
Where can I download the M321R2GA3EB0-CWM datasheet PDF?
The Samsung M321R2GA3EB0-CWM datasheet PDF is available through the Samsung semiconductor product page and through distributor datasheet services such as Win Source, which hosts a downloadable PDF link for this part number. Because Samsung typically documents RDIMM families rather than individual SKUs, the datasheet covers the M321R2GA3EB0 series parameters including timing at 5600 MT/s and module mechanical drawings.
Where to find the M321R2GA3EB0-CWM pinout?
As a 288-pin DDR5 RDIMM, the M321R2GA3EB0-CWM uses the standard JEDEC DDR5 RDIMM edge-connector pinout common to all 288-pin DDR5 registered modules, documented in the Samsung module datasheet rather than an individual SKU drawing. Key pin groups include the 64-bit data bus plus ECC (72-bit total), differential clock/command/address, I2C sideband for SPD and PMIC control, and 1.1V power pins.
Is M321R2GA3EB0-CWM the same as PC5-44800 memory?
Yes. PC5-44800 is the JEDEC speed class designation for DDR5-5600, representing 44800 MB/s of peak bandwidth per channel. The M321R2GA3EB0-CWM is listed as PC5-44800 1.1V CL46 by Server Supply and harddiskdirect, so listings showing either 'DDR5-5600' or 'PC5-44800R' (the R denoting registered) refer to the same operating speed class.
Does DDR5 RDIMM memory like M321R2GA3EB0-CWM have on-module power management?
Yes. All DDR5 modules, including the M321R2GA3EB0-CWM RDIMM, include an on-module Power Management IC (PMIC) that converts the 1.1V memory bus supply locally, a change from DDR4 where power management lived on the motherboard. This improves power delivery granularity and efficiency in dense server chassis, though RDIMM PMICs are set to a fixed operating mode for reliability rather than the configurable mode of desktop UDIMMs.
Is M321R2GA3EB0-CWM suitable for entry-level virtualization and edge computing?
Yes. Corewave Labs describes the M321R2GA3EB0-CWM as designed for entry-level virtualization, edge compute, and small-scale servers. Its 16GB capacity per module allows building 128GB+ configurations across 8 channels, ECC corrects single-bit errors critical for long-running virtual machine hosts, and 5600 MT/s bandwidth feeds modern Xeon Scalable and EPYC memory controllers effectively in compact edge nodes.

엔지니어링 참조 데이터: M321R2GA3EB0-CWM — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the Samsung M321R2GA3EB0-CWM when your server platform's QVL requires an OEM 16GB DDR5-5600 1Rx8 ECC RDIMM, when the build is for a Dell/HPE/ODM system where vendor-list eligibility matters, or when fleet uniformity favors a single Samsung MPN. Choose the Samsung M321R2GA3EB2-CWM if your approved list includes the alternate die revision or allocation on the EB0 suffix is constrained - both are electrically interchangeable. Choose the NEMIX RAM or A-Tech third-party equivalents when budget or warranty terms (NEMIX lifetime warranty) outweigh OEM branding, since all match 16GB, DDR5-5600, 1Rx8, 1.1V, CL46, and the 288-pin RDIMM footprint. Do not choose this module for desktop platforms: RDIMMs are incompatible with UDIMM-only sockets. Mixed rank/speed populations may derate channel speed - keep matched sets.

대체품과의 비교

파라미터 이 제품 M321R2GA3EB2-CWM NEMIX RAM 16GB DDR5-5600 1Rx8 RDIMM A-Tech 16GB DDR5-5600 1Rx8 ECC RDIMM
Package 288-pin DDR5 RDIMM 288-pin DDR5 RDIMM - same 288-pin DDR5 RDIMM - same 288-pin DDR5 RDIMM - same
Brand Samsung Electronics Samsung Electronics NEMIX RAM A-Tech
Capacity 16 GB 16 GB 16 GB 16 GB
Speed DDR5-5600 (PC5-44800) DDR5-5600 (PC5-44800) DDR5-5600 (PC5-44800) DDR5-5600 (PC5-44800)
Rank / Organization 1Rx8 1Rx8 1Rx8 1Rx8
Operating Voltage 1.1 V 1.1 V 1.1 V 1.1 V
ECC Registered Yes Yes Yes Yes

주요 차별점

  • Native DDR5-5600 operation on current server platforms (vs Lower-speed DDR5-4800 RDIMMs)
  • Samsung OEM silicon with enterprise qualification trail (vs NEMIX RAM 16GB DDR5-5600 1Rx8 RDIMM)
  • 1Rx8 single-rank organization (vs 2Rx8 dual-rank 16GB RDIMMs)

설계 노트

Verify platform memory type before purchase: RDIMMs like the M321R2GA3EB0-CWM will not boot in desktop boards that accept only UDIMMs, and vice versa. Check the server OEM's qualified vendor list (QVL) for approved 16GB DDR5-5600 1Rx8 RDIMM part numbers. On platforms limited to DDR5-4800, the module will operate at the lower JEDEC speed without issue, but mixing 5600 and 4800 modules in one system forces all channels to the slower speed.

For best bandwidth, populate DIMM slots following the platform's channel population order - typically filling one module per channel across all channels before adding a second DIMM per channel. Balanced 1Rx8 population across all eight channels maximizes interleaving and avoids unbalanced memory controllers. Consult the server vendor's population rules for derated speeds when using two DIMMs per channel at 5600 MT/s.

DDR5 RDIMMs include on-module PMICs, so per-module power is locally managed at 1.1V; still, ensure chassis airflow over DIMM slots in dense configurations. Many server platforms expose DIMM temperature telemetry via the sideband I2C bus for predictive throttling. In high-ambient edge enclosures, verify inlet air meets the JEDEC module operating temperature range and avoid stacking fully populated channels directly above hot-running components.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

Compliance data not stated in the provided web data. Samsung enterprise DDR5 modules are typically RoHS compliant; verify on the official Samsung product page.

데이터 검증일: 2026-09-04 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

M321R2GA3EB0-CWM M321R2GA3EB0-CWM datasheet Samsung M321R2GA3EB0-CWM 16GB DDR5 16GB DDR5-5600 ECC RDIMM 1Rx8 288-pin DDR5 registered DIMM server memory M321R2GA3EB0-CWM equivalent replacement M321R2GA3EB0-CWM vs M321R2GA3EB2-CWM buy M321R2GA3EB0-CWM price PC5-44800 ECC registered memory Dell HPE is M321R2GA3EB0-CWM compatible with my server 16GB DDR5 RDIMM for virtualization server what is PC5-44800 memory

관련 부품 & 용어

Samsung Electronics M321R2GA3EB0-CWM M321R2GA3EB2-CWM NEMIX RAM A-Tech DDR5 SDRAM RDIMM Registered DIMM ECC 288-pin DIMM PC5-44800 DDR5-5600 1Rx8 JEDEC FBGA PMIC server memory data center virtualization edge compute
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