Abstract: A supporting frame is used to mount a hard disk drive to a storage rack. The storage rack forms two protrusions protruding inwards from opposite sides of the storage rack. The supporting frame includes a handle and two side brackets resiliently connected to the handle. The side brackets are fixedly attached to opposite sides of the hard disk drive. The handle defines two locking holes. The protrusions of the storage rack are respectively engaged in the locking holes. When the handle is moved away from the hard disk drive, the handle is deformed to disengage the protrusions of the storage rack from the locking holes of the handle.