There is provided an optical disc drive that can maintain contact between an optical disc and a conveying roller, while allowing the number of components to be reduced. A conveying roller includes a right roller that is rotatable around an axis and a left roller that is rotatable around an axis. The right roller portion and the left roller portion are arranged in a lateral direction. One of a right end portion of the right roller portion and a left end portion of the left roller portion is movable in an up-down direction relative to the other of the right end portion of the right roller portion and the left end portion of the left roller portion, with a relative position between the axis and the axis unchanged.

Provided is a base unit for use in a disk drive apparatus including a motor arranged to be capable of rotating about a central axis extending in a vertical direction. The base unit includes a base member arranged to extend radially to support the motor, and including a predetermined adhesion region and an outside region outside of the adhesion region; and a connector electrically connected to a wire arranged on the base member. The connector is adhered to the base member through an adhesive at the adhesion region of the base member. A wettability of the adhesive on the adhesion region is higher than a wettability of the adhesive on the outside region of the base member.

A chassis monitoring system and a chassis monitoring method are provided. The chassis monitoring system includes an electronic device and a chassis including a SAS (serial attached SCSI) expander. The electronic device transmits a SES (SCSI Enclosure Service) command to the SAS expander through a TCP/IP (Transmission Control Protocol/Internet Protocol) protocol. The SAS expander executes the SES command to monitor the chassis. The SAS expander transmits an execution result of the SES command to the electronic device.

A heat sink can be used as part of a storage drive to perform multiple functions, both structural and thermodynamic. It can be used as a heat dissipating element and it can be used as the key mechanical mounting structure for storage drives, such as hard disk drives (HDD), and any circuit boards.

A tolerance ring has a band with outwardly extending corrugated protrusions forming waves that engage an outer surface of a shaft. At one end of the tolerance ring is an inwardly flared guide surface extending axially and radially from the band. The guide surface acts as a tapered entrance to a bore of a housing to assist during assembly.

A handle mechanism is to be mounted on a slidable plate and to slide the slidable plate relative to a chassis. The handle mechanism includes a handle and an engagement component. The handle is adapted to be pivotably disposed on the slidable plate so as to have an engaged position and a disengaged position. The engagement component is slidably disposed on the handle and adapted to contact the chassis to slide the slidable plate into the chassis. The engagement component has a contact surface, and the contact surface has an edge located away from an axis of the handle. A distance between the edge of the contact surface of the engagement component and the axis of the handle in the engaged position is smaller than a distance between the edge of the contact surface of the engagement component and the axis of the handle in the disengaged position.

A fixing device for placing data storages of different sizes includes a storage shelf, a separator plate, and at least two mounting brackets. The storage shelf defines a receiving space, the storage shelf includes a first wall and a second wall arranged at intervals along a first direction, the first wall and the second wall define the receiving space. The separator plate is detachably installed in the storage shelf to change a height of the receiving space along the first direction. The at least two mounting brackets have two different sizes and are detachably received in the receiving space for receiving the data storages. A host having the fixing device is also provided.

Provided is a base unit for use in a disk drive apparatus including a motor arranged to be capable of rotating about a central axis extending in a vertical direction. The base unit includes a base member arranged to extend radially to support the motor, and including a predetermined adhesion region and an outside region outside of the adhesion region; and a connector electrically connected to a wire arranged on the base member. The connector is adhered to the base member through an adhesive at the adhesion region of the base member. A wettability of the adhesive on the adhesion region is higher than a wettability of the adhesive on the outside region of the base member.

A tolerance ring has a band with outwardly extending corrugated protrusions forming waves that engage an outer surface of a shaft. At one end of the tolerance ring is an inwardly flared guide surface extending axially and radially from the band. The guide surface acts as a tapered entrance to a bore of a housing to assist during assembly.

A drive blank comprises a front member having a first end, a second end, a back face, and an aperture formed between the first end and the second end. The drive blank further has a first side member and a second side member each extending perpendicularly from the first end and the second end of the front member, respectively. The drive blank has a rear member extending parallel to the front member and between the first and second side members. A locking element is formed integral to the front member. The locking element comprises a looping portion having a first end and a second end and a push button formed at the second end of the looping portion and disposed in the aperture. The push button has a locking catch, releasably coupled to a latch element of a handle, to lock the handle in a closed position.