Since I wanted to install a SSD drive in my Powerbook (even though its fast without it), I tried this:

http://www.newegg.com/Product/Product.aspx?Item=9SIA6RP2EN4671

It was coming from China so it took about 25 days to get to me. It works great but it gets REAL hot to the touch. Well..the SSD drive does for some reason. The other problem is that its form factor doesnt let me just "plug it in" without doing something to keep it secured. I temporarily hot glued it but ended up removing it because it was just getting very hot.

I tried this out also:
http://www.amazon.com/gp/product/B017VQT5YW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

It works perfect also. No heat issues and then form factor is perfect. Fits right in place of the original drive and you cant beat the price either.