Product Overview
The Samsung M393A4K40EB3-CWE is a 32GB DDR4 SDRAM memory module designed for compatible servers and enterprise workstations. It operates at a rated data rate of 3200 MT/s and uses a 288-pin registered DIMM (RDIMM) form factor. Its dual-rank x4 organization, ECC support, and 1.2V operating voltage make it suitable for supported enterprise memory configurations.
Key Features
- 32GB capacity: Provides memory expansion for compatible server platforms.
- DDR4-3200 performance: Rated at 3200 MT/s, corresponding to PC4-25600.
- ECC support: Supports error correction on compatible server systems.
- Registered DIMM architecture: Uses registered memory technology for supported server platforms.
- Dual-rank x4 organization: Features a 2Rx4 configuration and nominal operating voltage of 1.2V.
Compatibility
This module is intended for servers and workstations that support DDR4 ECC registered DIMMs. RDIMMs are not interchangeable with standard unbuffered desktop DIMMs and generally cannot be mixed with load-reduced DIMMs (LRDIMMs). Check the system manufacturer's documentation for supported memory types, maximum capacity, processor requirements, and memory population rules before installation.
Typical Applications
- Enterprise server memory configurations
- Replacement of matching 32GB DDR4 RDIMM modules
- Compatible workstation memory upgrades
- Business infrastructure and general-purpose server workloads
DC Supplies Product Note
Verify the complete part number, M393A4K40EB3-CWE, against your server's compatibility list before ordering. This is a 32GB ECC registered server DIMM, not a standard desktop UDIMM or laptop SO-DIMM. The actual operating speed depends on the processor, motherboard, and installed memory configuration.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M393A4K40EB3-CWE |
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| Product Type | Server memory module |
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| Capacity | 32GB |
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| Memory Technology | DDR4 SDRAM |
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| Rated Data Rate | 3200 MT/s |
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| Memory Standard | PC4-25600R |
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| Form Factor | RDIMM (Registered DIMM) |
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| Pin Count | 288-pin |
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| Rank Organization | Dual rank x4 (2Rx4) |
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| Module Organization | 4G x72 |
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| DRAM Component Organization | 2G x4 |
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| DRAM Component Count | 36 |
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| DRAM Component Density | 8Gb |
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| Error Correction | ECC |
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| Buffering | Registered |
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| CAS Latency | CL22 |
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| Timing | 22-22-22 |
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| Operating Voltage | 1.2V |
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| Module Height | 31.25mm |
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Frequently Asked Questions
What is the capacity of this Samsung memory module?
The M393A4K40EB3-CWE has a capacity of 32GB.
What is its rated memory speed?
It is rated for DDR4-3200, or 3200 MT/s. Actual operating speed depends on the server platform and memory configuration.
Does this module support ECC?
Yes. It is designed for compatible systems supporting ECC registered memory.
Can I install it in a standard desktop computer?
Generally, no. Most consumer desktop motherboards require unbuffered UDIMMs rather than registered RDIMMs. Check your motherboard specifications before purchasing.
Can RDIMMs and LRDIMMs be mixed?
RDIMMs and LRDIMMs generally cannot be mixed in the same system. Follow the server manufacturer's memory configuration guidelines.
