Overview
The Samsung M378A1K43CB2-CTD is an 8GB DDR4 SDRAM desktop memory module designed to expand system memory in compatible desktop computers. It operates at a data rate of 2666 MT/s and uses a 288-pin unbuffered DIMM form factor.
Based on Samsung's DDR4 C-die memory design, this module features a single-rank, x8 memory organization. Its non-ECC, unbuffered architecture is intended for compatible desktop platforms that support standard DDR4 UDIMM memory.
Technical Information
The module uses DDR4 SDRAM technology with a rated data rate of 2666 MT/s, commonly marketed as DDR4-2666 or PC4-21300. It operates at a nominal supply voltage of 1.2V and has a CAS latency of CL19.
The single-rank configuration uses eight x8 memory components to provide a 64-bit data width. The module is unregistered and does not provide ECC error correction.
Compatibility
This memory module is intended for desktop computers with a compatible 288-pin DDR4 UDIMM memory slot. The motherboard and processor must support DDR4 memory and the module's capacity and organization.
- Suitable for compatible desktop systems using DDR4 UDIMM memory.
- Requires a motherboard with a 288-pin DDR4 DIMM slot.
- Designed for platforms supporting unbuffered, non-ECC memory.
- Actual operating speed depends on motherboard, processor, and memory configuration support.
This is not a laptop SO-DIMM module. It should not be treated as a substitute for registered server memory or ECC memory where those features are required.
Key Features
- 8GB capacity: Provides additional system memory for compatible desktop computers.
- DDR4-2666 performance: Supports a rated data rate of 2666 MT/s.
- 288-pin UDIMM design: Uses the standard desktop DDR4 DIMM form factor.
- Single-rank x8 organization: Uses a 1Rx8 memory configuration.
- 1.2V operating voltage: Uses the nominal supply voltage specified for this DDR4 module.
Applications
The Samsung M378A1K43CB2-CTD can be used to upgrade or replace memory in compatible desktop computers. Typical applications include office workstations, home computers, business desktops, and other systems designed for unbuffered non-ECC DDR4 memory.
It may also be used when restoring a compatible desktop system to operation or expanding memory capacity alongside existing modules, provided the system supports the resulting configuration.
DC Supplies Product Note
Before purchasing this module as an upgrade, confirm whether your motherboard and processor support 8GB DDR4 UDIMMs with a single-rank x8 organization. If installing it alongside existing memory, check the system manufacturer's guidance for supported combinations and mixed-module operating speeds. A DDR4 slot alone does not guarantee compatibility with every module configuration.
Specifications
| Brand | Samsung |
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| Part Number / MPN | M378A1K43CB2-CTD |
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| Product Type | Desktop DDR4 SDRAM 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 | UDIMM |
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| Pin Count | 288-pin |
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| Module Configuration | 1G x 64 |
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| Rank Configuration | Single rank (1Rx8) |
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| Memory Organization | Eight x8 memory components |
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| CAS Latency | CL19 |
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| Memory 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 Die Type | C-die |
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| Intended System Type | Compatible desktop computers |
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Frequently Asked Questions
1. Is the Samsung M378A1K43CB2-CTD compatible with my desktop computer?
Compatibility depends on your motherboard and processor. Confirm that your system supports 288-pin DDR4 UDIMM memory, 8GB modules, and the module's memory organization before purchasing.
2. Can I install this module in a laptop?
This module uses the full-size 288-pin desktop DIMM form factor. Laptops that require shorter SO-DIMM memory modules are not compatible with this form factor.
3. Does this module support ECC memory correction?
No. The M378A1K43CB2-CTD is a non-ECC memory module. Systems requiring ECC memory should use a compatible module that explicitly supports the required error-correction functionality.
4. Will this memory always run at 2666 MT/s?
The module is rated for 2666 MT/s, but its actual operating speed depends on the processor, motherboard, BIOS settings, and other installed memory. A compatible system may operate it at a lower supported speed.
5. Can I combine this module with another DDR4 memory module?
Combining modules may be possible if the motherboard supports their capacities and configurations. For best compatibility, check the system manufacturer's memory recommendations and verify the specifications of the existing module before installation.
