:| Packaged Quantity: 1| Number of Total Expansion Bays: 1| Number of 5.25" Bays: No| Number of 3.5" Bays: No| Number of 2.5" Bays: No| Number of 2.5"/3.5" Bays: No| Number of 1.8" Bays: No| Drive Interface: mini-SATA| Host Interface: USB 3.0| Material: Aluminum| Form Factor: External. .