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SATA II vs SATA III

My desktop PC motherboard just support up to SATA II. You know I have a SATA III SSD drive. I would like to see more improvement on speed.

The specs of my PC:

SATA II is 3Gbits/s – 300M/s

SATA III is 6Gbits/s – 600M/s

1) I installed the SSD on my Desktop with the onboard SATA II connection.

See the report below:

sata2-ssd-benchmark-1

SSD is connected as a second drive.

sata2-ssd-benchmark-2

SSD is connected as a primary drive. System is installed on it.

sata2-ssd-crystaldiskmark

Testing result by CrystalDiskMark.

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