Overview
The Samsung M378A2K43CB1-CTD is a 16GB DDR4 SDRAM memory module designed for compatible desktop computers. It uses a 288-pin unbuffered DIMM form factor and provides dual-rank memory organization for systems supporting standard non-ECC DDR4 memory.
With a rated data rate of 2666 MT/s, this module is suitable for desktop memory upgrades, replacement installations, and system maintenance where the motherboard supports the module's specifications.
Memory Architecture and Performance
The module uses Samsung 8Gb C-die DRAM components arranged in a dual-rank x8 configuration. Sixteen memory components provide the module's 16GB capacity, with a 64-bit data interface.
Its DDR4-2666 specification corresponds to PC4-21300-class memory, with standard timing of 19-19-19 and a nominal operating voltage of 1.2V. Actual operating performance depends on the processor's memory controller, motherboard capabilities, firmware configuration, and other installed modules.
Compatibility
The M378A2K43CB1-CTD is designed for desktop systems that support 288-pin DDR4 UDIMM memory. Confirm that the motherboard and processor support 16GB modules, dual-rank memory, and unbuffered non-ECC operation before purchasing.
- Requires a compatible 288-pin DDR4 desktop DIMM slot.
- Designed for unbuffered, non-ECC memory configurations.
- Uses a dual-rank x8 memory organization.
- Not compatible with laptop slots designed for SO-DIMM modules.
- Not a substitute for registered server memory or ECC memory where those features are required.
Key Features
- 16GB capacity: Provides additional system memory for supported desktop computers.
- DDR4-2666 data rate: Supports a rated transfer rate of 2666 MT/s.
- Dual-rank x8 organization: Uses a 2Rx8 memory configuration with sixteen DRAM components.
- 288-pin UDIMM form factor: Designed for compatible desktop DDR4 memory slots.
- 1.2V operation: Uses the nominal operating voltage specified for this DDR4 module.
Applications
This module can be used to expand or replace RAM in compatible desktop computers, including office PCs, business desktops, and workstations that support unbuffered non-ECC DDR4 memory. It is also suitable for system maintenance and replacement projects where the existing memory configuration calls for a compatible 16GB module.
DC Supplies Product Note
This module uses a dual-rank configuration, so check the motherboard's supported rank and module combinations before installing it alongside existing memory. When mixing modules, the system may adjust the operating speed or timings to accommodate the complete memory configuration.
Specifications
| Brand | Samsung |
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| Part Number / MPN | M378A2K43CB1-CTD |
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| Product Type | Desktop DDR4 SDRAM memory module |
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| Memory Capacity | 16GB |
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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 | 2G x 64 |
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| Rank Configuration | Dual rank (2Rx8) |
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| DRAM Component Density | 8Gb |
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| DRAM Organization | 1G x 8 per component |
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| Number of DRAM Components | 16 |
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| DRAM Die Type | C-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 interface |
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| Intended System Type | Compatible desktop computers |
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Frequently Asked Questions
1. Is this Samsung memory compatible with every DDR4 desktop?
No. The motherboard and processor must support the module's capacity, dual-rank organization, data rate, and unbuffered non-ECC configuration. Check the system manufacturer's compatibility documentation before purchasing.
2. Can this module be installed in a laptop?
No, not in a laptop designed for SO-DIMM memory. This module uses the full-size 288-pin desktop UDIMM form factor.
3. Does this module support ECC?
No. The M378A2K43CB1-CTD is non-ECC memory and does not provide ECC error-correction functionality.
4. Will the memory always operate at 2666 MT/s?
Not necessarily. Although its rated data rate is 2666 MT/s, actual operating speed depends on processor support, motherboard capabilities, firmware settings, and the other installed memory modules.
5. Can I combine this module with another memory module?
Combining modules may be possible if the system supports their capacities and configurations. Check the motherboard's memory population guidelines, supported rank combinations, and existing module specifications before installation.
