2008 MacBook Pro 15” Unibody

Those off-brand SSDs kind of scare me, but other than that the only important thing is that it has the proper screw mounting holes on the sides. Those are more or less pegs that fit into the mounting bracket to keep it in place. Any existing drive would have these parts keeping it in place, and they can easily be reused. But if yours has been modified and doesn't have them, it's easy enough to find the mounting screws for sale. Finding the bracket might be a bit harder. These aren't the only options, but they're the ones that showed up first in a search. You would also need a #00 (or #0) Phillips bit/screwdriver (bracket) and a T6 Torx bit/screwdriver (mounting screws).

https://www.amazon.com/Odyson-Drive-Bracket-Replacement-MacBook/dp/B00NUG45CK

https://www.amazon.com/Odyson-Screws-Replacement-MacBook-2009-2012/dp/B00ZYY442C

There are lots of instruction videos on how in install a drive on a Unibody MacBook Pro. Don't worry about the size, as the procedure and parts are the same for all screen sizes.

You will want to make sure the SSD does not come loose from the internal SATA cable. Plus you don't want the SSD to move as that may pull on the fragile SATA Cable and damage it. It should not be too hard to figure out a way to securely mount the SSD. I forget what the drive bay is like on this model, but perhaps some electrical tape and maybe some foam will be enough to hold it in place. What happened to the original drive bracket? It should work on any standard 2.5" SSDs.

FYI, you should use an OWC Mercury Electra 3G SSD instead for a system that old. Most SSDs today use a SATA III controller which in theory should be backwards compatible with the SATA II controller used by your 2008 laptop, however, many SSDs will not properly auto negotiate the SATA Link Speed so they end up causing problems. The OWC 3G SSD uses a SATA II controller, so it should just work with the older laptop.

FYI, you can post pictures here using the "Image Insertion" tool on the forum editing toolbar which looks like tow triangles and a small circle inside a rectangular box (supposed to look like a picture frame containing a portrait of a mountain scene containing two peaks and the sun/moon). I won't click on any links leading to unknown websites as that is dangerous.

Hi,

That's a standard size 2.5" form factor. It should mount in the same way the HDD does. If there's a bracket for the HDD, use that to mount the SSD the same way the HDD was mounted.