Samsung 8GB 3200MHz DDR4 PC4-25600 ECC Unbuffered CL21 288-Pin DIMM 1.2V Single Rank x8 Memory Module — M391A1K43DB2-CWE

The Samsung M391A1K43DB2-CWE is an 8GB DDR4-3200MHz ECC Unbuffered (UDIMM) server memory module operating at 1.2V with CL21 latency. Featuring a 288-pin interface and Single Rank x8 configuration, it delivers reliable ECC error correction for workstation and entry-level server platforms requiring unbuffered memory with data integrity protection at an efficient 8GB capacity.

Key Features

• 8GB capacity with ECC (Error-Correcting Code) for data integrity
• DDR4-3200MHz (PC4-25600) for high-bandwidth performance
• Unbuffered DIMM (UDIMM) for workstation and entry-level server compatibility
• Single Rank x8 configuration for broad platform compatibility
• 1.2V low-voltage operation for energy efficiency
• 288-pin interface — standard DDR4 DIMM form factor

Product Specifications

• Part Number: M391A1K43DB2-CWE
• Manufacturer: Samsung
• Model: 8GB DDR4-3200 ECC Unbuffered DIMM
• OEM Status: Genuine Samsung OEM
• Capacity: 8GB
• Type: DDR4 ECC Unbuffered DIMM (UDIMM)
• Speed: 3200MHz (PC4-25600)
• CAS Latency: CL21
• Voltage: 1.2V
• Rank / Organization: Single Rank x8
• Pins: 288-Pin
• ECC: Yes

Memory Specifications

• Capacity: 8GB
• DIMM Type: Unbuffered ECC (UDIMM)
• DDR Generation: DDR4
• Pin Count: 288-Pin
• Rank: Single Rank (1Rx8)
• Voltage: 1.2V
• ECC: Yes (Error-Correcting Code)

Performance Specifications

• Speed: DDR4-3200MHz
• Bandwidth: PC4-25600
• CAS Latency: CL21
• XMP / JEDEC: JEDEC standard

Use Cases

• Workstation memory upgrade requiring ECC data protection
• Entry-level server platforms supporting DDR4 ECC UDIMM
• Multi-slot ECC UDIMM configurations for scalable capacity
• High-reliability computing environments needing error correction

Compatibility

• Compatible with motherboards supporting DDR4 ECC Unbuffered (UDIMM) memory
• Not compatible with systems requiring RDIMM or LRDIMM
• Verify motherboard ECC UDIMM support before ordering
• Compatible with Intel Xeon E and AMD Ryzen Pro platforms supporting ECC UDIMM

Frequently Asked Questions

What is the difference between Single Rank and Dual Rank memory?

Single Rank modules have one set of memory chips accessed per cycle, while Dual Rank modules have two sets, allowing the controller to interleave for potentially higher bandwidth. Single Rank modules offer broader compatibility.

Is the M391A1K43DB2-CWE compatible with consumer desktop motherboards?

ECC UDIMMs require motherboard and CPU support for ECC memory. Most consumer platforms do not support ECC — verify your specific motherboard and CPU ECC compatibility before ordering.

Can I mix this 8GB module with other capacity ECC UDIMMs?

Mixing DIMM capacities is generally supported but may affect performance. Consult your motherboard or server documentation for mixed-capacity DIMM configuration guidelines.

The Samsung M391A1K43DB2-CWE 8GB DDR4-3200 ECC Unbuffered DIMM delivers reliable, error-correcting memory performance for workstations and entry-level servers. Order today for genuine Samsung memory quality with ECC data integrity protection.