Upgrade your desktop's performance and responsiveness with the Crucial 8GB 1Rx8 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory CT8G4DFS8266-C8FE. Designed by Crucial, a trusted Micron brand, this 8GB DDR4 memory module delivers reliable performance for everyday computing, productivity applications, home office systems, and custom PC builds.
Operating at 2666 MT/s with a low operating voltage of 1.2V, this memory module helps improve multitasking, application responsiveness, and overall system efficiency. The unbuffered, non-ECC design is optimized for mainstream desktop motherboards that support standard DDR4 UDIMM memory.
Key Features
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8GB Capacity – Ideal for desktop performance upgrades and memory replacements.
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DDR4-2666 Speed – Delivers fast system responsiveness and improved multitasking.
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PC4-21300 Bandwidth – Supports data transfer rates up to 2666 MT/s.
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Single Rank 1Rx8 Design – Optimized for broad desktop compatibility.
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Low Power Consumption – Efficient 1.2V operating voltage.
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288-Pin UDIMM Form Factor – Designed for standard desktop motherboard installations.
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Micron/Crucial Quality – Built using premium DRAM components for long-term reliability.
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Plug-and-Play Upgrade – Simple solution for improving desktop performance.
Technical Specifications
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Manufacturer: Crucial (Micron)
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Part Number: CT8G4DFS8266-C8FE
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SKU: CT8G4DFS8266-C8FE
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Capacity: 8GB (1 x 8GB)
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Memory Type: DDR4 SDRAM
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Form Factor: 288-Pin UDIMM (Unbuffered DIMM)
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Speed: DDR4-2666V-U
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Bus Type: PC4-21300
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Data Transfer Rate: 2666 MT/s
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Rank Configuration: 1Rx8 (Single Rank)
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CAS Latency: CL19 (19-19-19)
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Voltage: 1.2V
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Error Correction: Non-ECC
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Signal Processing: Unbuffered
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Chip Configuration: 8 x FBGA 1Gx8 DRAM Devices
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Heat Spreader: None (Bare PCB)
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Dimensions: 133.35mm x 31.25mm
Compatible Alternative Part Numbers
The following memory modules offer similar specifications and may serve as compatible alternatives depending on motherboard support:
- Crucial CT8G4DFS8266
- Crucial CT8G4DFS8266.C8FD1
- Samsung M378A1K43CB2-CTD
- Samsung M378A1K43DB2-CTD
- SK Hynix HMA81GU6CJR8N-VK
- SK Hynix HMA81GU6AFR8N-VK
- Micron MTA8ATF1G64AZ-2G6E1
- Kingston KVR26N19S8/8
- Kingston KCP426NS8/8
Compatible Memory Modules
Systems that support DDR4 UDIMM Non-ECC memory can commonly utilize the following module configurations:
- 4GB DDR4-2666 Non-ECC UDIMM
- 8GB DDR4-2666 Non-ECC UDIMM
- 16GB DDR4-2666 Non-ECC UDIMM
- 32GB DDR4-2666 Non-ECC UDIMM
- DDR4-2400 Non-ECC UDIMM Modules
- DDR4-2133 Non-ECC UDIMM Modules
- Crucial DDR4 Desktop Memory Modules
- Samsung DDR4 UDIMM Desktop Memory
- SK Hynix DDR4 UDIMM Desktop Memory
- Micron DDR4 Desktop Memory Modules
Ideal Applications
- Home Desktop Computers
- Office Workstations
- Student & Educational PCs
- Business Productivity Systems
- Custom-Built PCs
- Web Browsing & Multimedia
- General Computing Tasks
- Memory Upgrade Projects
Important Compatibility Notes
- Designed for desktop motherboards that support DDR4 UDIMM memory.
- Not compatible with laptops or systems that require SO-DIMM memory.
- Not compatible with servers requiring ECC Registered (RDIMM) or LRDIMM memory.
- Cannot be installed in DDR5-only motherboards.
- Mixing memory speeds may cause all installed modules to operate at the speed of the slowest DIMM.
- Always verify motherboard memory specifications before installation.
The Crucial 8GB 1Rx8 DDR4-2666V-U PC4-21300 UDIMM Non-ECC Memory CT8G4DFS8266-C8FE offers dependable performance, energy-efficient operation, and trusted Crucial quality for desktop systems. Whether you're upgrading an existing computer or building a new workstation, this DDR4 memory module provides the speed and stability needed for everyday computing and productivity workloads.
