iMac 21.5" Mid 2011 - what are the SATA Speeds?

[xpertxp]

Checking the back of the MLB on this iMac :
https://d3nevzfk7ii3be.cloudfront.net/igi/MGBrD5kThU1s6WkW.huge

There are 3 SATA ports, one Labeled HDD and 2 Labeled SATA.

I know the one that the internal HD is connected to is a SATA 3. Anyone know the other two?

Thanks!

 

[nambuccaheadsau]

The HDD is SATA III 6Gb/ps. The others are SATA II 3Gb/ps for secondary drives such as optical drives.


https://everymac.com/systems/apple/...-inch-aluminum-how-to-upgrade-hard-drive.html

 

[mikehalloran]

The 2011 shipped SATA 2 on all 3 ports. Apple released a firmware update within the year that updated two of them to SATA 3 but left the optical drive at SATA 2.