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The main difference is transfer speed, if you for instance a new solid state drive it a sat 1 port it will be limited in speed, still fast but not the maximum performance you could get out of it,

For a conventional Hard drive you won't notice the difference though.

All sata devices are backward compatible so theres no worries there

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11y ago
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15y ago

The data transfer rate. SATA I has up to 1.5 Gb/s, SATA II has up to 3.0 Gb/s

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14y ago

Its SATA, and SATA 2

SATA- Transfer rate- 150Mb (max)

SATA 2- Trasfer rate- 300Mb (max)

Main difference between the two.

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Q: What is the difference between SATA 1 and SATA 3?
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