Does my Optical Drive bay support SATA III

Reading this (on the link you provided) has got me confused on...(especially the last line)

OPTICAL BAY: The optical bay interface may either be SATA Revision 2.0 3Gb/s (300MB/s max) OR SATA Revision 3.0 6Gb/s. There is no way to specify/order this data interface with Apple, but you can confirm what interface version your optical bay offers by using 'About this Mac, More Info, Serial-ATA' info display.

Testing has demonstrated that Apple factory hardware does not reliably support a 6G (6Gb/s) Solid State Drive or Hard Disk Drive in the optical bay of 2011 MacBook Pros (ModeI ID8,1; 8,2; 8,3). If your OWC Data Doubler bundle comes with a 6G drive, you should ONLY install that drive in the main drive bay and utilize the Data Doubler to re-task your existing drive or install a new 3G SSD or HDD in the optical bay. PRE-2011 models can utilize a 6G drive in the optical bay, but will do so at a reduced 3G (3Gb/s) speed.

MacBook Pro 13" models: Apple does not support the use of 6Gb/s drives in the optical bay. While we have observed a high rate of success using SATA 3.0 6Gb/s drives in Apple 13" bays where 6Gb/s link is present, some systems may not operate properly with this setup. For guaranteed reliability/compatibility, we suggest 6Gb/s drives be used in the main drive bay only, and 3Gb/s hard drives or SSDs be used in the optical bay when a two-drive configuration is desired. We cannot guarantee proper or successful 6Gb/s drive operation in the Apple MacBook Pro 13" optical bay

And where can I find that type of information (given in the photograph that you attached)... it seems quite useful for further reference?

What does "3.0 or 6.0 Gbps" means?

Thanks for the guidance.😀

I contacted OWC Tech Support... waiting for their response.

Alternatively,

I think I can first buy an optical-bay Caddy, before investing in another SSD, and try the Samsung SSD that I am currently using in the Main-HD Bay, inside the caddy.

If the samsung SSD will work, I will confidently buy a new SATA3 SSD for dual-configration.

Thanks again.

the OWC support replied:

As per our Data Doubler page:

Testing has demonstrated that Apple factory hardware does not reliably support a 6G (6Gb/s) Solid State Drive or Hard Disk Drive in the optical bay of 2011 MacBook Pros (ModeI ID8,1; 8,2; 8,3).

This pretty much means that the optical bay would physically connect, but it will not run at proper speeds or even randomly disconnect from the computer. It is always best to have the SSD installed in the main drive bay of this computer, if one is not already.

I Guess i would try it myself, for a few days. If no problems arise, i will buy another ssd. Since I dont want Raid configuration, and the drive in the optical bay is would not be my primary drive, i can liv with it