M321R4GA0EB2-CCP - 32GB DDR5-6400 ECC RDIMM | Samsung
MPN: M321R4GA0EB2-CCP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $299 | $299.00 |
| 10 | $285 | $2,850.00 |
| 100 | $272 | $27,200.00 |
| 500 | $262 | $131,000.00 |
| 1,000 | $255 | $255,000.00 |
Drop-in alternatives for M321R4GA0EB2-CCP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M321R4GA0EB2-CWM
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View Datasheet →M321R4GA0EB0-CWM
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View Datasheet →M321R4GA0PB2-CCP
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View Datasheet →M321R4GA3EB2-CCP
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View Datasheet →MR51200-314K1-M321R4GA0EB2-CCP-V27
✅ Drop-In📋 Reference alternative (not in catalog)
M321R2GA3PB2-CCP
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View Datasheet →M321R4GA0EB2-CCP Maximum Ratings & Electrical Characteristics
| Capacity | 32 GB |
| Memory Type | DDR5 SDRAM RDIMM |
| Data Rate | 6400 MT/s (PC5-51200) |
| CAS Latency | CL52 |
| Organization | 4G x 72 (1Rx4) |
| Ranks | Single rank (1R) |
| DRAM Configuration | 20 x FBGA 4Gx4 DDR5 DRAM |
| Operating Voltage | 1.1 V |
| ECC | Yes (ECC registered) |
| Registration | Registered (buffered) DIMM |
| Form Factor | 288-pin DIMM |
| Module Type | Server / workstation memory |
| Compliance | 100% JEDEC compliant |
| Speed Grade Suffix | -CCP (DDR5-6400 bin) |
| Compatible Platforms | Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, Supermicro |
| On-Module PMIC | Yes (DDR5 12V on-module power management) |
M321R4GA0EB2-CCP standard Pin Configuration Guide
Complete pinout information for M321R4GA0EB2-CCP (standard package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for M321R4GA0EB2-CCP.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
M321R4GA0EB2-CCP is suitable for 6 applications: General-Purpose Enterprise Servers, Edge Compute Nodes, Low-VM-Density Virtualization Hosts, Dell PowerEdge Server Upgrades, HPE ProLiant Server Memory, Supermicro Server Platforms.
General-Purpose Enterprise Servers
The M321R4GA0EB2-CCP is a natural fit for general-purpose enterprise servers built on Intel Xeon and AMD EPYC platforms, where its 32GB capacity per module and DDR5-6400 (PC5-51200) bandwidth deliver a balanced memory-per-dollar profile. As a registered ECC DIMM, it supports the high DIMM counts per channel required in 1U/2U rack servers while the on-die and link ECC protects against single-bit errors that would otherwise crash virtualized workloads. At 1.1V, per-module power stays low, which matters when populating 16-24 slots per node. Install in matched sets per channel to sustain 6400 MT/s; verify derating tables when all slots are filled.
Recommended
Edge Compute Nodes
Samsung positions this module specifically for edge compute, where nodes are physically compact, thermally constrained, and remotely managed. The 1Rx4 single-rank organization minimizes electrical load and helps maintain DDR5-6400 speeds in densely populated short-depth servers, while 32GB per DIMM allows adequate capacity in as few as 4-8 slots, leaving room for airflow. The 1.1V operating voltage reduces module heat dissipation, easing cooling in sealed or fanless edge enclosures. ECC registered operation is essential for unattended edge sites where a correctable single-bit error must not escalate into an uncorrectable failure requiring a truck roll.
Recommended
Low-VM-Density Virtualization Hosts
For virtualization hosts running a modest number of VMs, 32GB modules such as the M321R4GA0EB2-CCP let administrators scale memory in 32GB increments without over-provisioning. DDR5's dual 32-bit subchannels and burst length 16 improve concurrency, which benefits hypervisor scheduling and memory-bandwidth-hungry guest workloads. The CL52 latency at 6400 MT/s is the JEDEC-standard timing for this bin, and single-rank x4 configuration keeps controller latency low for latency-sensitive VMs. When capacity needs grow, identical modules can be added per the platform's population rules while preserving registered ECC protection across the full installed base.
Recommended
Dell PowerEdge Server Upgrades
The M321R4GA0EB2-CCP is listed as compatible with Dell PowerEdge DDR5-generation servers (e.g., PowerEdge 16G/17G platforms using Xeon Scalable). Upgrade paths typically require RDIMMs, which this module provides, along with ECC for Dell's memory-fault-resilience features such as SDDC (Single Device Data Correction), which is most effective with x4 organization DRAM - exactly the 1Rx4 organization of this module. Install modules in Dell's recommended slots (white tabs first) in matched sets of identical part numbers to preserve validated 6400 MT/s operation and full RAS functionality. Verify against Dell's memory population rules before ordering.
Recommended
HPE ProLiant Server Memory
HPE ProLiant Gen11/Gen12 servers using 4th/5th Gen Xeon or EPYC 9004/9005 processors accept JEDEC DDR5 RDIMMs like the M321R4GA0EB2-CCP. The module's x4 organization complements HPE's advanced memory protection (online spare, mirroring, and Advanced ECC), which leverages x4 DRAM granularity for device-level correction. At DDR5-6400 with CL52 timing and 1.1V, the module supports the bandwidth HPE's memory controllers advertise for this class. HPE validates specific Samsung part numbers in its QVL; distributors list this MPN as ProLiant-compatible, but administrators should confirm supported speed at their target population before fleet-wide rollout.
Recommended
Supermicro Server Platforms
Supermicro explicitly cross-references the DDR5 RDIMM family (including the 2Rx8 sibling M321R4GA3EB2-CCP) with its own MEM-DR532L-SL02-ER64 SKU on X13/H13, X14/H14, and SuperBlade platforms, confirming Samsung 32GB DDR5-6400 RDIMM compatibility across Intel Xeon 6 and AMD EPYC 9005 (Turin) systems. The M321R4GA0EB2-CCP, as the 1Rx4 equivalent, drops into the same 288-pin slots and suits Supermicro's memory-bandwidth-focused GPU and storage servers where single-rank DIMMs help hold top validated speeds across 16-24 populated slots. Follow Supermicro's memory population tables to balance ranks across channels for optimal performance.
Recommended
Recommended Products Summary
Engineering reference data for M321R4GA0EB2-CCP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M321R4GA0EB2-CWM | M321R4GA3EB2-CCP | MR51200-314K1-M321R4GA0EB2-CCP-V27 | M321R2GA3PB2-CCP |
|---|---|---|---|---|---|
| Package | 288-pin DIMM | 288-pin DIMM - same | 288-pin DIMM - same | 288-pin DIMM - same | 288-pin DIMM - same |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | NEMIX RAM (Samsung-compatible) | Samsung Electronics |
| Capacity | 32 GB | 32 GB | 32 GB | 32 GB | 16 GB |
| Data Rate | 6400 MT/s (PC5-51200) | DDR5-6400 class | 6400 MT/s (PC5-51200) | 6400 MT/s (PC5-51200) | 6400 MT/s class |
| Rank / Organization | 1Rx4 (4Gx72) | 1Rx4 | 2Rx8 | 1Rx4 | 2Rx8 |
| CAS Latency | CL52 | CL52 class | CL52 | CL52 | [DATA_NEEDED] |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| ECC / Registration | ECC Registered (RDIMM) | ECC Registered | ECC Registered | ECC Registered | ECC Registered |
| Indicative Price (qty 1) | $299.00 MSRP (as of 2026-09-04) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Single-rank 1Rx4 organization sustains top speed at high population (vs M321R4GA3EB2-CCP)
- Native Samsung silicon with full platform validation (vs MR51200-314K1-M321R4GA0EB2-CCP-V27)
- DDR5-6400 bin with standard JEDEC CL52 timing (vs M321R4GA0EB2-CWM)
Design Notes
DDR5-6400 is the module's maximum rated speed, not a guarantee. Server platforms derate supported memory speed based on the number of populated DIMMs per channel and rank configuration. Before ordering at volume, check your platform's validated memory population table (Dell, HPE, Lenovo, Supermicro all publish QVLs) and confirm the achieved speed at your target population. Mixing the single-rank M321R4GA0EB2-CCP with dual-rank modules in the same system usually forces all channels to the slowest common denominator.
As a registered DIMM, the M321R4GA0EB2-CCP buffers command/address via a registering clock driver, which is what permits long traces and high slot counts. Do not substitute UDIMMs in RDIMM-only server slots - they are electrically incompatible and will not train. The x4 DRAM organization enables Single Device Data Correction (SDDC) on supporting platforms, protecting against an entire x4 device failure; this RAS benefit is lost if you switch to x8-organized modules.
DDR5 modules carry an on-module PMIC fed from the 12V plane, so power delivery and thermal design move partly from the motherboard onto the DIMM itself. At 1.1V operating voltage, per-module dynamic power is lower than DDR4, but ensure server chassis airflow across DIMM slots meets vendor requirements, particularly in 24-slot configurations. Estimated: full-population 8-channel x 2-DPC servers should assume derating to 5600 MT/s or lower unless the platform explicitly validates 6400 MT/s at full load.
Compliance Information
Distributor data states 100% JEDEC compliance. Formal RoHS/REACH/lead-free certificates were not present in the retrieved web data; request compliance documentation from Samsung or the distributor.
