Can SATA 3 Gb/s cables be used with a SATA 6 Gb/s port?

Loosley

Member
Jan 17, 2011
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So as part of the Intel Sandy Bridge flaw fiasco, I am moving over my hard drives to the SATA 6 Gb/s ports on my Asus P8P67 Pro motherboard.

Can I use a SATA 3 Gb/s cable to connect a SATA 3 Gb/s device to a SATA 6 Gb/s port?

Thanks!

Here are the devices, for reference:

WD 640 GB (WD6401AALS) - 3 Gb/s <-> Intel SATA 6 Gb/s port 1
DVD writer - 3 Gb/s (probably less) <-> Intel SATA 6 Gb/s port 2
WD 2 GB (WD20EARS) - 3 Gb/s <-> Marvell SATA 6 Gb/s port
 

Anomaly1964

Platinum Member
Nov 21, 2010
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Good question, I just used the 3G cables but the MB came with 6G cables...should I use those?
 

Anetic

Junior Member
Jan 31, 2011
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Anomoly, they won't make a difference but they will work. I can confirm as I just switched my sataII drives over to sataIII ports using those cables.

Currently using marvell for my dvd drive.