Micron Technology, Inc.
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A-Tech
A-Tech 4GB DDR4 2666MHz PC4-21300 DIMM 1Rx8 Desktop Memory
A 4GB DDR4 2666MHz desktop DIMM running at 1.2V with 288 pins for AMD and Intel systems
- Capacity4GB
- SpeedDDR4 2666 (PC4 21300)
- Tested Frequency2666
- Voltage1.20V
- ECCNo
- Buffered/RegisteredUnbuffered
- Boosts system responsiveness with 4GB DDR4 2666MHz memory
- Standard 1.2V voltage ensures efficient desktop operation
- Unbuffered 288-pin DIMM fits mainstream desktop slots
- Replaces Samsung M378A5143TB2-CTD module for direct compatibility
- Rigorously tested for dependable performance and reliability
4GB DDR4 2666MHz Desktop Module
This single 4GB DIMM runs at 2666MHz with a standard 1.20V supply. It uses the 288-pin DDR4 form factor and is built as a 1Rx8 unbuffered non-ECC module. The stick is validated as a direct replacement for the Samsung M378A5143TB2-CTD part number.
Suits basic desktop upgrades.
The module fits AMD and Intel platforms that accept DDR4 2666MHz unbuffered memory. It works well for light office work, web browsing and entry-level productivity. Systems that require ECC error correction, registered buffering or larger individual module capacities should select a different specification.
Steady throughput at rated JEDEC settings
Operating at the rated 2666MHz frequency and 1.20V, the module maintains consistent bandwidth during extended workloads. Unbuffered non-ECC architecture keeps latency predictable for everyday multitasking. Thermal behaviour remains within standard DDR4 limits without requiring active cooling beyond normal case airflow.
Highlights
- Boosts system responsiveness with 4GB DDR4 2666MHz memory
- Standard 1.2V voltage ensures efficient desktop operation
- Unbuffered 288-pin DIMM fits mainstream desktop slots
- Replaces Samsung M378A5143TB2-CTD module for direct compatibility
- Rigorously tested for dependable performance and reliability
Specifications
| Brand | A-Tech |
|---|---|
| Capacity | 4GB |
| Speed | DDR4 2666 (PC4 21300) |
| Tested Frequency | 2666 |
| Voltage | 1.20V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Recommend Use | AMD & Intel Compatible |
Questions about this item
Will this 4 GB DDR4 2666 MHz DIMM fit my desktop motherboard?
The module is a 288-pin DDR4 UDIMM running at 1.2 V. It will fit any desktop board with a DDR4 slot that accepts 2666 MHz non-ECC memory.
Can I add this stick alongside my existing 8 GB DDR4 2666 MHz module?
Yes. Matching speed, voltage and non-ECC type lets the two modules run together in dual-channel mode if your board supports it.
Is this the correct replacement for a Samsung M378A5143TB2-CTD module?
The A-Tech part is listed as a compatible replacement for that exact Samsung part number, sharing the same 4 GB capacity, DDR4 2666 MHz speed and 1.2 V operation.
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