I recents had my Hard drive replaced by Apple and kept my old hard drive so that I could transfer the information across. I have a MacBook Pro 12.
I bought a hardrive caddy as advised however the 2.5inch HDD SATA (my previous hard drive) doesn't fit in the hardrive caddy I bought (Orico 2.5 inch Hard drive enclosure). Anyone know any hardrive caddy that is compatible?
MacBook Pro 13″, macOS 10.15
Welcome!
If you have a Mid-2012 MacBook Pro (that is a guess becasue as all we have is "MacBook Pro 12") you only need a caddy to replace the internal optical drive with a 2.5-inch hard drive or solid state drive, not when you use the old 2.5-inch drive as an external one in a 2.5-inch enclosure.
A "drive caddy" is usually used to adapt a large drive bay or enclosure to hold a physically smaller drive. Example: Some iMacs have a 3.5-inch mechanical hard drive. If you replace the old 3.5-inch HD with a new solid-state drive that is a 2.5-inch case formate, you need a caddy as an adapter to make the mounting secure..
If your drive is 2.5-inch and the Orico enclosure is for 2.5-inch drives, you should not need an adapter/caddy. If you need further help with that particular enclosure, you need to contact Orico.
Here is the install video for a different brand of 2.5-inch enclosure that I use and need no caddy
https://eshop.macsales.com/installvideos/enc_owc_elite_al_mini_hd/
Should be similar to yours.
Hardrive Caddy
