Product Overview
The Samsung M393A2K40EB3-CWE is a 16GB DDR4 SDRAM memory module designed for compatible servers and workstations. It operates at a rated data rate of 3200 MT/s and uses a 288-pin registered DIMM (RDIMM) form factor. With ECC support, single-rank x4 organization, and a nominal operating voltage of 1.2V, this module is intended for supported enterprise memory configurations.
Key Features
- 16GB capacity: Adds memory capacity to compatible server and workstation systems.
- DDR4-3200 speed: Supports a rated data rate of 3200 MT/s, equivalent to PC4-25600.
- ECC functionality: Supports error correction when enabled by the compatible platform.
- Registered DIMM design: Uses a register to support command, address, and control signal handling.
- Single-rank x4 organization: Uses a 1Rx4 configuration with a nominal operating voltage of 1.2V.
Compatibility
This module is intended for servers and workstations that specifically support DDR4 ECC registered DIMMs. RDIMMs are not interchangeable with unbuffered DIMMs (UDIMMs), and they generally must not be mixed with load-reduced DIMMs (LRDIMMs). Check the system manufacturer's memory compatibility list, supported capacities, processor requirements, and memory population rules before installation.
Typical Applications
- Server memory upgrades and replacements
- Compatible enterprise workstation configurations
- Virtualization and general-purpose server workloads
- Business infrastructure requiring ECC registered memory
DC Supplies Product Note
Verify the complete part number, M393A2K40EB3-CWE, before ordering. This is a 16GB DDR4-3200 ECC RDIMM, not a standard desktop UDIMM or a laptop SO-DIMM. Actual operating speed depends on the server, processor, and installed memory configuration.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M393A2K40EB3-CWE |
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| Product Type | Server memory module |
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| Capacity | 16GB |
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| Memory Technology | DDR4 SDRAM |
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| Rated Data Rate | 3200 MT/s |
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| Memory Standard | PC4-25600 |
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| Form Factor | RDIMM (Registered DIMM) |
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| Pin Count | 288-pin |
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| Rank Organization | Single rank x4 (1Rx4) |
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| Module Organization | 2G x72 |
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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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Frequently Asked Questions
What is the capacity of this module?
The Samsung M393A2K40EB3-CWE has a capacity of 16GB.
What is its rated memory speed?
It is rated for DDR4-3200, or 3200 MT/s. The actual operating speed depends on the host system and its memory configuration.
Does this module support ECC?
Yes. It is an ECC memory module designed for compatible platforms that support error-correcting registered memory.
Can I use this RAM in a standard desktop PC?
Generally, no. Most consumer desktop motherboards require unbuffered UDIMMs rather than registered RDIMMs. Check your motherboard or system documentation before purchasing.
Can it be mixed with LRDIMM memory?
RDIMMs and LRDIMMs generally cannot be mixed in the same system. Follow the server manufacturer's memory configuration guidelines.
