Overview
The Samsung M378A4G43MB1-CTD is a 32GB DDR4 SDRAM memory module designed for compatible desktop computers. It uses a 288-pin unbuffered DIMM form factor and a dual-rank x8 memory organization.
With a rated data rate of 2666 MT/s, this module provides additional memory capacity for compatible desktop systems used for business applications, multitasking, and memory-intensive workloads.
Memory Architecture and Performance
This module uses Samsung 16Gb M-die DDR4 SDRAM components arranged in a dual-rank configuration. Sixteen x8 DRAM components provide the module's 32GB capacity through a 64-bit data interface.
The module operates at a nominal voltage of 1.2V and supports standard DDR4-2666 timing of 19-19-19. Actual operating speed depends on the processor's memory controller, motherboard support, firmware configuration, and installed memory combination.
Compatibility
The M378A4G43MB1-CTD is intended for desktop computers that support 288-pin DDR4 UDIMM memory. Because this is a 32GB dual-rank module, verify the motherboard's supported DIMM capacities and memory configurations before installation.
- Requires a compatible 288-pin DDR4 DIMM slot.
- Designed for unbuffered, non-ECC memory configurations.
- Uses a dual-rank x8 organization.
- Not compatible with laptop slots designed for SO-DIMM memory.
- Not a replacement for registered server memory or ECC memory where those features are required.
Key Features
- 32GB memory capacity: Provides substantial memory capacity in a single desktop module.
- DDR4-2666 data rate: Supports a rated transfer rate of 2666 MT/s.
- Dual-rank x8 architecture: Uses a 2Rx8 memory configuration with sixteen DRAM components.
- Unbuffered UDIMM design: Intended for compatible desktop memory architectures.
- 1.2V operating voltage: Uses the nominal supply voltage specified for this DDR4 module.
Applications
This memory module can be used to expand or replace RAM in compatible desktop computers and workstations. Its 32GB capacity can support multitasking, professional productivity software, development environments, and other workloads that benefit from additional system memory.
DC Supplies Product Note
Confirm support for individual 32GB UDIMMs before ordering. Some desktop platforms have limitations on maximum module capacity or supported memory organization, even when they use DDR4 memory. Check the motherboard or system manufacturer's memory compatibility documentation for the specific configuration.
Specifications
| Brand | Samsung |
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| Part Number / MPN | M378A4G43MB1-CTD |
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| Product Type | Desktop DDR4 SDRAM memory module |
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| Memory Capacity | 32GB |
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| Memory Technology | DDR4 SDRAM |
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| Rated Data Rate | 2666 MT/s |
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| Memory Standard | DDR4-2666 / PC4-21300 |
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| Form Factor | UDIMM |
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| Pin Count | 288-pin |
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| Module Organization | 4G x 64 |
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| Rank Configuration | Dual rank (2Rx8) |
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| DRAM Component Density | 16Gb |
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| DRAM Organization | 2G x 8 per component |
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| Number of DRAM Components | 16 |
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| DRAM Die Type | M-die |
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| CAS Latency | CL19 |
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| Standard Timing | 19-19-19 |
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| Operating Voltage | 1.2V |
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| Error Correction | Non-ECC |
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| Buffering | Unbuffered |
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| Registration | Unregistered |
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| Module Height | 31.25 mm |
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| Intended System Type | Compatible desktop computers |
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Frequently Asked Questions
1. Is the Samsung M378A4G43MB1-CTD compatible with every DDR4 desktop?
No. The motherboard and processor must support the module's capacity, memory organization, and unbuffered non-ECC configuration. Check the system manufacturer's compatibility documentation before purchasing.
2. Can I install this module in a laptop?
No, not in a laptop designed for SO-DIMM memory. This is a full-size 288-pin desktop UDIMM.
3. Does this module support ECC?
No. This is non-ECC memory and does not provide ECC error-correction functionality. Systems that require ECC need a compatible module specifically designed for that purpose.
4. Will this module always operate at 2666 MT/s?
Not necessarily. Its rated data rate is 2666 MT/s, but the actual operating speed depends on the processor, motherboard, firmware settings, and installed memory configuration.
5. Can I combine this 32GB module with existing memory?
Possibly, provided the system supports the combined capacity and module configuration. Check the motherboard's memory population guidelines and supported DIMM combinations before installation.
