2nd SATA Hard Disk Drive HDD Caddy for Apple MacBook Pro Replacement Plug & Play, Supports hot swapping. Fast & Reliable connection in laptop, just as the primary HDD. Fully integrated into laptop, no cables/PSU/software driver needed. This is compatible with Apple MACBOOK /MACBOOK PRO that has a 9.5mm-high SuperDrive with SATA interface Including but not limited : MB466, MB467, MB470, MB990, MB371, MC226. This device accepts 2.5"/9.5mm SATA HDD or SSD.