Product Overview
The Samsung M393A8G40CB4-CWE is a 64GB DDR4 SDRAM memory module designed for compatible servers and enterprise computing systems. 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 server memory configurations.
Key Features
- 64GB capacity: Provides high-capacity memory expansion for compatible server systems.
- DDR4-3200 performance: Rated at 3200 MT/s, corresponding to PC4-25600.
- ECC support: Supports error correction when used with a compatible platform.
- Registered DIMM architecture: Designed for server platforms that support registered DDR4 memory.
- Dual-rank x4 organization: Features a 2Rx4 configuration and a nominal operating voltage of 1.2V.
Compatibility
This module is intended for servers and workstations that support 64GB DDR4 ECC registered DIMMs. Registered DIMMs are not interchangeable with unbuffered desktop DIMMs and generally cannot be mixed with load-reduced DIMMs (LRDIMMs). Confirm supported memory types, processor requirements, maximum capacity, and memory population rules in the system manufacturer's documentation before installation.
Typical Applications
- Enterprise server memory expansion
- High-capacity server memory configurations
- Virtualization and database workloads
- Replacement of compatible 64GB DDR4 RDIMM modules
DC Supplies Product Note
Verify the complete part number, M393A8G40CB4-CWE, against your server's memory compatibility documentation before ordering. This is a 64GB ECC registered server DIMM, not a standard desktop UDIMM or laptop SO-DIMM. The actual operating speed depends on the server platform, processor, and installed memory configuration.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M393A8G40CB4-CWE |
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| Product Type | Server memory module |
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| Capacity | 64GB |
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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 | 8G x72 |
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| DRAM Component Organization | 4G x4 |
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| DRAM Component Count | 36 |
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| Error Correction | ECC |
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| Buffering | Registered |
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| CAS Latency | CL22 |
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| Operating Voltage | 1.2V |
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Frequently Asked Questions
What is the capacity of this memory module?
The Samsung M393A8G40CB4-CWE has a capacity of 64GB.
What is its rated memory speed?
It is rated for DDR4-3200, or 3200 MT/s. The actual operating speed depends on the server platform and memory configuration.
Does this module support ECC?
Yes. It is designed for compatible systems that support 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 system 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.
