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4GB RAM Replacement for Crucial CT4G4SFS8266 | DDR4 2666MHz PC4-21300 SODIMM 1Rx8 Laptop Memory
- 4GB ( 1x 4GB Module ) | DDR4 2666 MHz ( PC4-21300 ) | DDR4 SODIMM ( 260-Pin ) | Non-ECC SODIMM ( Unbuffered SO-DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Crucial CT4G4SFS8266
- High performance Memory RAM upgrade designed for Laptop/Notebook/All-in-One Computer Systems
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
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Overview
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An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!
Compatible Memory Module Replacement for Crucial:
CT4G4SFS8266
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR4
Form Factor: SO-DIMM ( 260 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Compatible Memory Module Replacement for Crucial:
CT4G4SFS8266
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR4
Form Factor: SO-DIMM ( 260 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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A-Tech 4GB DDR4-2666 SO-DIMM laptop memory is a single 260-pin, non-ECC, unbuffered 1.2V module for compatible laptops, notebooks, and all-in-one PCs that support these specifications.
Recommended For
- Owners of a laptop that supports a 4GB DDR4-2666 SO-DIMM and needs a matching replacement to restore its existing memory configuration.
- Owners of a compatible laptop with 4GB already installed and an open memory slot who want to add this module for a modest 8GB total, such as for lighter browsing and document work.
- People repairing or refurbishing an older laptop whose specifications call for a 4GB DDR4 SO-DIMM and who want to restore that system’s intended memory capacity.
Real-World Use Scenarios
- A user with a compatible laptop running 4GB of RAM adds this module in an available slot to reach 8GB; when low memory is causing slowdowns, switching among everyday browser tabs and documents may feel less constrained, though this is not a fix for demanding workloads.
- An owner of a laptop with 4GB soldered memory and a compatible open SODIMM slot can add this 4GB module for 8GB total; on systems that support it, the matched capacities can run in dual-channel mode.
- Someone replacing a failed or incompatible 4GB laptop memory module can use this as a like-for-like replacement if the laptop supports 4GB DDR4-2666 SO-DIMM; it restores the module’s capacity, rather than increasing the system’s total RAM.
- A user with a supported two-slot laptop and one 4GB module can add this matching-capacity stick to expand memory while filling the second slot; the system may benefit from dual-channel operation, but the laptop’s memory support and existing module should be checked first.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | 4GB memory upgrades for AMD- or Intel-based systems that support DDR4 2666MHz 260-pin SO-DIMM memory |
| Capacity | 4GB |
| Memory Type And Form Factor | DDR4 SO-DIMM, 260-pin |
| Speed And Latency | 2666MHz (PC4-21300), CL19 |
| Voltage And Error Correction | 1.20V, non-ECC, unbuffered |
| Memory Features | Major brand chips |
| Brand | A-Tech |