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Addlink S20 SATA III 6Gb/s SSDs: 120GB vs. 256GB vs. 512GB vs. 1TB

The Addlink S20 SATA III 6Gb/s Solid State Drive comes in four capacity options that offer different performance speeds. You can find out what the differences are between the 120GB, 256GB, 512GB and 1TB versions of the SSD in this comparison guide.

Quick Summary

The 1TB Addlink S20 SATA III Solid State Drive has the fastest maximum sequential reading speed out of all the available capacities. The 1 TB version is also tied with the 512 GB version with having the fastest maximum sequential writing speed.

With that said, the 1 TB SSD has the worst endurance out of this group when you take into account capacity in relations to Terabytes Written. The 120 GB SSD has the best endurance in this case.

If you are interested, you can purchase any of the aforementioned capacity options on Amazon with the following links:

Addlink S20 SATA III 6Gb/s SSDs Comparison Chart

 120GB Addlink S20 SATA III 6Gb/s SSD 256GB Addlink S20 SATA III 6Gb/s SSD 512GB Addlink S20 SATA III 6Gb/s SSD 1TB Addlink S20 SATA III 6Gb/s SSD
OS Compatibility Linux

Mac OS X

Windows
Linux

Mac OS X

Windows
Linux

Mac OS X

Windows
Linux

Mac OS X

Windows
Form Factor 2.5”2.5”2.5”2.5”
NAND3D TLC3D TLC3D TLC3D TLC
SmartECC and SmartRefresh Support?YesYesYesYes
Maximum Sequential Read Speed Up to 510 MB per secondUp to 510 MB per secondUp to 550 MB per secondUp to 5560 MB per second
Maximum Sequential Write Speed Up to 400 MB per second Up to 400 MB per second Up to 500 MB per second Up to 500 MB per second
Operating Voltage 0.9V to 3.6V0.9V to 3.6V0.9V to 3.6V0.9V to 3.6V
Endurance 80 TBW130 TBW300 TBW500 TBW
Reliability 2 million hours2 million hours2 million hours2 million hours
Warranty3-year warranty3-year warranty3-year warranty3-year warranty
PricingCheck price on Amazon.Check price on Amazon.Check price on Amazon.Check price on Amazon.

OS Compatibility

All four capacity options of the Addlink S20 SATA III 6Gb/s SSD support the Linux, Mac OS X and Windows operating systems.

Form Factor

The 120 GB, 256 GB, 512 GB and 1 TB versions also uses the same 2.5” form factor.

NAND

For NAND, the four variants of the Addlink S20 are equipped with 3D TLC.

SmartECC and SmartRefresh Support

All four of the capacities also support SmartECC and SmartRefresh, both of which will help with data retention and error correction during transfers.

Maximum Sequential Read Speed

The sequential speeds of the S20 SATA III Solid State Drive are measured by Addlink by using the CrystalDiskMark software.

According to these internal tests, the 1 TB capacity is the fastest when it comes to maximum sequential reads as it is 10 MB per second faster (or 1.82% faster) than the 512 GB version as well as 50 MB faster (or 9.8% faster) than the 120 GB and 256 GB versions.

You can take a look at the max sequential reading speeds below:

  • 120GB Addlink S20: Up to 510 MB per second
  • 256GB Addlink S20: Up to 510 MB per second
  • 512GB Addlink S20: Up to 550 MB per second
  • 1TB Addlink S20: Up to 560 MB per second

Maximum Sequential Write Speed

The 512 GB and 1 TB SSDs are identical when it comes to maximum sequential writing. Both of these are 100 MB faster (or 25% faster) than the 120 GB and 256 GB SSDs.

You can check out the max sequential r write speed specifications below:

  • 120GB Addlink S20: Up to 400 MB per second
  • 256GB Addlink S20: Up to 400 MB per second
  • 512GB Addlink S20: Up to 500 MB per second
  • 1TB Addlink S20: Up to 500 MB per second

Operating Voltage

All four of the S20 SSD have an operating voltage range of 0.9V to 3.6V.

Endurance

The Endurance metric for the Addlink S20 is based on TBW, or TeraBytes Written. When you compared the TBW in relations to the capacity, the 120 GB solid state drive has the best endurance, followed by the 512 GB solid state drive and then the 256 GB solid state drive. The 1 TB solid state drive has the worst endurance out of this group.

You can find the TBW for each version below:

  • 120GB Addlink S20: 80 TBW
  • 256GB Addlink S20: 130 TBW
  • 512GB Addlink S20: 300 TBW
  • 1TB Addlink S20: 500 TBW

Reliability

Reliability of the Addlink S20 is measured as MTBF, or Mean Time Between Failures, which is the length of time between two critical hardware failures of the solid state drive. All very capacities have a MTBF of 2 million hours.

Warranty

The 120 GB, 256 GB, 512 GB and 1 TB versions of the Addlink S20 SATA III 6Gb/s Solid State Drive each comes with a 3-year warranty.

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