# Crucial RAM 4GB DDR4 2666 MHz CL19 Desktop Memory CT4G4DFS8266

- Category: RAM
- Brand: Crucial
- Model: Single
- Part number: CT4G4DFS8266
- Price (US): currently unavailable
- Price last checked: 2026-08-05
- Rating: 4.7/5 from 1118 Amazon reviews
- Warranty: Limited Lifetime
- Product page: https://buildmypc.net/component-details/ram/crucial-single-ct4g4dfs8266/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | Crucial |
| Model | Single |
| RAM Size | 4 GB  |
| Quantity | 1 x 4 GB  |
| RAM Speed | DDR4 / 2666 MHz |
| DIMM Type | 288-Pin |
| CAS Lantency | CL19 |

## Key Features

- Improve your system's responsiveness, run apps faster and multitask with ease
- Install with ease; no computer skills required How-to guides available at Crucial
- Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool
- Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise
- ECC Type = Non-ECC, Form Factor = UDIMM, Pin Count = 288-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx8

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