Ssd Backwards Compatible To Sata Ii And Sata I

I have this SSD
SDSSDA-480G-G25
Here is the spec sheet
https://documents.westerndigital.co...-iii-ssd/data-sheet-ssd-plus-sata-iii-ssd.pdf
I searched a lot on the web but I was not able to determine if this Sata III drive is backwards compatible to Sata I and Sata II.

 

It's not about the drive, its about the interface. And the interface (SATA) standard requires SATA be forward and backward compatible. So (at least "in theory") any SATA drive, regardless if SATA, SATA II or SATA III, will work in any SATA connection.

Of course, "in theory" and "real world" don't always jive. But it is highly unlikely you will see any problem.

However, to take full advantage of the SATA 3.0 drive's performance capabilities, you should connect it to a SATA 3.0 connection. Otherwise, the data transfer speeds will throttle back to the slowest speed in the link.

 

I actually researched this topic a fair bit. According to what I read, what you are saying is not accurate. Using a Sata III drive that isn't backwards compatible could maybe even put your data at risk.

Of course, it's possible that the sources that I learned from (various websites) are inaccurate or outdated. But, I did really dive into the topic for a substantial amount of time.

Not a great citation but
https://www.kingston.com/us/ssd/a400-solid-state-drive
(note that this is NOT the drive that's the subject of the OP)
shows a modern drive does not say it's backwards compatible to Sata I. Why wouldn't the manufacturer say Sata I, if they are going to bother to say Sata II?

 

I don't know. Ask them. Just remember that was probably written by the marketing people and not the tech people.

As I said before, it is not about the drive, it is about the interface. So Google the interface to learn about SATA.

SATA forward backward compatible

 

Here is another citation for my argument
https://lowendmac.com/2018/watch-out-for-sata-iii-drives-in-sata-ii-macs/
"SATA standards are all backwards compatible, right? Well, not necessarily. Researching upgrade options for the 2010 iMac on my desk has been a real learning experience. Some SATA III hard drives are auto-sensing and thus compatible with SATA II and SATA I ports, but some SATA III hard drives are fixed speed only and thus not backward compatible with SATA II Macs (and PCs) unless you can add a SATA III card."

 

Then why ask here if you are set in your position? I showed you what the standard says. Since you don't believe it, don't buy anything that does not match.

Good luck.

 

I appreciate your help (in this thread and always). I have learned a lot from you.
In the OP, I was asking if my specific model is backwards compatible. I understand that you think that all of the sata 3 drives work fine here.
Perhaps I'm wrong in what I am saying.
Peace.

 

I cannot answer to your specific model because I don't have one in front of me. All I can do is repeat what I said above and say, "in theory" compatibility should not be a problem.

But I will also add that in researching your specific model, I can find nothing to suggest it is not fully backwards compatible.

Sorry I cannot be more specific.

 

Read this information below.
https://en.wikipedia.org/wiki/Backward_compatibility