For anybody's need for external sata drive's. This is a must. I got a new sdd and had to migrate Windows and so my information to the new drive. I tried to take apart an external hard drive and it just wouldn't work. Went and bought this little gem and I had no more problems.
Toshiba - 500GB Internal Serial ATA 2.6 Hard Drive for Laptops
Give yourself plenty of space to store your important files with this Toshiba internal laptop hard drive, which features a Serial ATA 2.6 interface for easy connection to a PC or Mac. The 12 ms average seek time helps ensure fast, efficient performance.