Product Overview
The Samsung M393AAG40M32-CAE is a 128GB DDR4 SDRAM memory module designed for compatible enterprise servers. It operates at a rated data rate of 3200 MT/s and uses a 288-pin registered DIMM (RDIMM) form factor. With ECC support, quad-rank x4 organization, and a nominal operating voltage of 1.2V, this module is intended for server platforms designed to support high-capacity DDR4 registered memory.
Key Features
- 128GB capacity: Supports high-capacity memory configurations in compatible servers.
- DDR4-3200 data rate: Rated for 3200 MT/s, corresponding to PC4-25600.
- ECC support: Provides error-correction capability on compatible server platforms.
- Registered DIMM architecture: Uses registered memory technology for supported enterprise systems.
- Quad-rank x4 organization: Uses a 4Rx4 configuration with 1.2V nominal operating voltage.
Compatibility
This module is intended for servers that support 128GB DDR4 ECC registered DIMMs with 3DS DRAM technology. Compatibility depends on the server model, processor generation, memory controller, supported module density, and memory population rules. RDIMMs are not interchangeable with unbuffered DIMMs (UDIMMs), and RDIMMs generally cannot be mixed with load-reduced DIMMs (LRDIMMs).
Typical Applications
- High-capacity enterprise server memory configurations
- Virtualization and data-intensive server workloads
- Database and business infrastructure systems
- Replacement of compatible 128GB DDR4-3200 RDIMM modules
DC Supplies Product Note
Verify the exact part number, M393AAG40M32-CAE, against the server manufacturer's memory compatibility list before ordering. This is a 128GB ECC registered server module with a quad-rank x4 organization. Confirm support for 3DS memory and 128GB DIMMs, as not all DDR4 servers support this module type or capacity.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M393AAG40M32-CAE |
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| Product Type | Server memory module |
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| Capacity | 128GB |
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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 | Quad rank x4 (4Rx4) |
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| DRAM Configuration | 3DS 2H, 8G x4 devices |
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| Component Composition | (3DS 2H 8G x4) x 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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| Module Height | 31.25mm |
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Frequently Asked Questions
What is the capacity of this Samsung memory module?
The M393AAG40M32-CAE provides 128GB of memory in a single module.
What is its rated memory speed?
The module is rated for DDR4-3200, or 3200 MT/s. Actual operating speed depends on the server, processor, and installed memory configuration.
Does this module support ECC?
Yes. It is designed for compatible server platforms supporting ECC registered memory.
Can I use this module in a standard desktop PC?
Generally, no. Most consumer desktop motherboards use unbuffered UDIMMs rather than registered server DIMMs.
Will it work in any DDR4 server?
No. The server must support the module's 128GB capacity, registered DIMM format, 3DS DRAM technology, and quad-rank x4 organization.
