MacBook Pro Upgrade

Having given my Sony Vaio to Mrs GOG, I decided to upgrade my other laptops to improve their performance. I was running a 500GB Solid State Drive, which was fast, but did not have sufficient storage capacity, so I have spent part of today replacing it with a 1TB magnetic disc drive in this laptop. I have not been able to find a 1TB SSD anywhere. I now have various other machines to juggle parts within to optimise the performance of all of them and I expect to surface later this week.