S20 SATAIII 6GB/s SSD
addlink S20 is a 2.5” SATA III SSD built for fast everyday upgrades and HDD replacements. Using the SATA III 6Gb/s interface and high-quality 3D NAND, it delivers up to 550 MB/s read and 500 MB/s write for quicker boot times, faster app launches, and smoother file transfers. Built-in SmartECC™ and SmartRefresh™ help maintain reliable data transfer and long-term endurance.
Top SSD Tech for Contemporary Laptops
Up to 550 MB/s read & 500 MB/s write.
5x Faster
than HDD
Note：Make sure your system supports a 2.5” SATA drive and a SATA III port for best results. Actual performance may vary depending on system configuration, interface, workload, and other factors.
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Excellent Compatibility for Upgrades
The S20’s 7mm height fits most laptops and compact PC bays, making it an easy drop-in upgrade for HDD replacements and thin notebook installations.
High Quality
3D NAND
2.5” Design
Slim 7mm
Enhanced Durability / Reliability
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Built with 3D NAND plus SmartECC™ and SmartRefresh™ to help maintain stable performance and long-term reliability.
End-to-end Data Protection
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SmartECC™ provides error correction to help protect data integrity during reads/writes and everyday use.
Low Power Consumption
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Designed for efficient operation with a 0.9V–3.6V operating voltage, helping reduce power draw for laptops and always-on systems.
Multi-Device Versatility
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Best-value 2.5” SATA SSD for everyday laptop/desktop upgrades and HDD replacement.
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Laptop users upgrading from HDD to SSD for a faster, quieter system
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Desktop PCs needing a reliable OS / application drive
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Home office setups that benefit from faster boot and snappier multitasking
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Budget gaming PCs that want quicker load times on a SATA system
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External 2.5” enclosures for portable backups and file shuttling (SATA-to-USB)
Media Recommendations
"By using only high-quality flash chips and enhanced firmware algorithms, the S20 SSD is guaranteed to provide greater performance and reliability."
" I picked up the 256GB variant for my 2012 MacBook Pro running a 2TB Seagate SSHD Gaming Drive. After purchasing three SSDs for my 2010 Mac Pro, it was time to give my 2012 MacBook Pro a little SSD love!"
" TBW doesn’t mean instant failure—it’s mainly a warranty limit. S20 endurance tests show it can meet, even exceed, the rated TBW."
" All the information I've reviewed indicates that Addlink SSDs have excellent benchmark results. I'm considering buying one to build an HTPC."
Why Choose the addlink S20?
addlink S20 is a SATA III 2.5” SSD designed to make older systems feel new again—delivering fast everyday responsiveness with 3D NAND and reliability features that support consistent performance for work, study, and play.
Key Features
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SATA III 6Gb/s interface for broad compatibility with laptops and desktops
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Up to 550 MB/s read and 500 MB/s write for everyday speed upgrades
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Built with 3D NAND to improve endurance and overall performance
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Reliability technologies: SmartECC™ and SmartRefresh™ for data retention and error correction
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Great choice for OS drive upgrades, HDD replacements, and general storage acceleration
Capacity Options
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120GB / 256GB / 512GB / 1TB / 2TB
Ideal For
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HDD replacement to speed up older laptops and desktops
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OS + apps drive upgrades for faster startup and daily responsiveness
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Everyday computing: office, schoolwork, web, and light content tasks
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Budget gaming builds that want improved loading on SATA systems
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External 2.5” enclosure users needing portable backups
* *Sequential performance varies by capacity, system configuration, SATA controller, driver/OS, workload, and available free space.
** Limited warranty: 3 years. Please check Warranty Policy for details.
Test Conditions / Benchmark Notes
• Benchmark tool: CrystalDiskMark (default profile)
• Interface notes: Best results on SATA III 6Gb/s; SATA II/I will cap peak throughput
• System factors: SATA controller/chipset, driver/firmware, OS background tasks
• Workload factors: test file size, queue depth, and free space
• Note: All speeds are “up to” values; actual results depend on configuration and conditions