Overview
The Samsung M378A1K43DB2-CTD is an 8GB DDR4 SDRAM memory module designed for compatible desktop computers. It uses a 288-pin unbuffered DIMM form factor and provides a 64-bit memory organization for systems supporting standard non-ECC DDR4 desktop memory.
This module belongs to Samsung's D-die DDR4 memory range. Its single-rank configuration and DDR4-2666 speed rating make it a memory upgrade or replacement option for compatible desktop platforms.
Memory Performance and Architecture
The module is rated for a data transfer rate of 2666 MT/s, with standard DDR4-2666 timing of 19-19-19. It operates at a nominal voltage of 1.2V and uses eight 8Gb x8 DRAM components to provide its total 8GB capacity.
The unbuffered, non-ECC design is intended for desktop systems that do not require registered memory or ECC functionality. Actual operating speed depends on the processor, motherboard, BIOS configuration, and installed memory combination.
Compatibility
The M378A1K43DB2-CTD is designed for systems supporting 288-pin DDR4 UDIMM memory. Before purchasing, verify the motherboard's supported memory capacity, DDR4 speed, module organization, and non-ECC requirements.
- Requires a compatible 288-pin DDR4 desktop DIMM slot.
- Designed for unbuffered, non-ECC memory configurations.
- Not intended for laptop memory slots that require SO-DIMMs.
- Not a substitute for registered DIMMs or ECC memory where those features are required.
Key Features
- 8GB memory capacity: Provides additional system memory for supported desktop computers.
- DDR4-2666 data rate: Supports a rated transfer rate of 2666 MT/s with 19-19-19 timing.
- Single-rank x8 architecture: Uses eight x8 DRAM components in a single-rank configuration.
- 288-pin UDIMM form factor: Fits compatible desktop DDR4 DIMM slots.
- 1.2V operation: Uses the nominal operating voltage specified for this DDR4 memory module.
Applications
This memory module can be used to expand or replace RAM in compatible office desktops, home computers, and workstation systems that support unbuffered non-ECC DDR4 memory. It is also suitable for memory maintenance and system restoration when the original module specifications match.
DC Supplies Product Note
The M378A1K43DB2-CTD uses Samsung D-die DRAM components. Although its model number resembles the M378A1K43CB2-CTD, the two models use different DRAM die types. If matching an existing memory module, verify the complete part number rather than relying on capacity and speed alone.
Specifications
| Brand | Samsung |
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| Part Number / MPN | M378A1K43DB2-CTD |
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| Product Type | DDR4 desktop memory module |
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| Memory Capacity | 8GB |
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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 | 288-pin UDIMM |
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| Module Organization | 1G x 64 |
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| Rank Configuration | 1Rx8, single rank |
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| DRAM Component Organization | 1G x 8 |
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| Number of DRAM Components | 8 |
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| DRAM Die Type | D-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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| DRAM Package | 78-ball FBGA |
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| Module Height | 31.25 mm |
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| Memory Interface | 64-bit data organization |
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| Intended System Type | Compatible desktop computers |
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Frequently Asked Questions
1. Is the Samsung M378A1K43DB2-CTD compatible with every DDR4 desktop?
No. The motherboard and processor must support the module's capacity, speed, organization, and unbuffered non-ECC configuration. Check the system manufacturer's compatibility documentation before ordering.
2. Can this memory be installed in a laptop?
This is a full-size 288-pin desktop UDIMM, not a laptop SO-DIMM. It will not fit a laptop memory slot designed for SO-DIMMs.
3. What is the difference between this module and the M378A1K43CB2-CTD?
The M378A1K43DB2-CTD uses D-die DRAM components, while the M378A1K43CB2-CTD uses C-die components. Both model families include 8GB DDR4-2666 desktop memory, but their exact component configurations differ.
4. Will the module always operate at 2666 MT/s?
Not necessarily. The rated data rate is 2666 MT/s, but the system may operate the memory at a lower supported speed depending on the processor, motherboard, BIOS settings, and other installed modules.
5. Can I combine this module with existing RAM?
It may be possible if the existing memory and system support the combined configuration. Verify module compatibility, supported capacities, and memory speed requirements before mixing different modules.
