YEUHTLL Hard Disk Drive Adapter HDD Caddy SATA SSD Bracket for Apple-MacBook Pro A1278 A1286 A1297 - Walmart.com
for Apple MacBook Pro Unibody Mid-2012 A1278 A1286 13" 15" Laptop Internal 2nd 240GB 240 GB 256GB SSD SATA 3 6Gbps Second Solid State Hard Disk Drive DVD Optical Drive : Amazon.in:
Apple MacBook Pro 13-Inch "Core i7" 2.9GHz MD102LL/A A1278 Mid-2012 – Coretek Computers
MacBook Pro SSD Upgrade - 500GB
Amazon.com: for Apple MacBook Pro A1278 A1286 A1297 2nd 9.5mm SATA HDD SSD Caddy Adapter Bay : Electronics
Installing MacBook Unibody Model A1278 Dual Hard Drive - iFixit Repair Guide