An anti jamming chassis includes a body, a first upper cover mounted on the body, and a second upper cover mounted on the body. The first upper cover includes a first main cover and a first support portion. The first main cover is parallel to and not coplanar with the first support portion. The second upper cover includes a second main cover and a second support portion. The second main cover is parallel to and not coplanar with the second support portion. A through hole is defined at a joint position of the second main cover and the second support portion. When the first upper cover and the second upper cover are connected, the first support portion passes through the through hole and supports the second main cover.

A rotary extending frame includes a frame, a handle, a plurality of friction pieces, and a plurality of positioning discs. The frame has a plurality of accommodation spaces and fastening portions. The handle is rotatably disposed on the frame and has a holding portion and a plurality of rotating portions connected to two ends of the holding portion and facing two side surfaces of the frame respectively. The friction pieces are disposed on the corresponding rotating portions respectively and are firmly attached on the two side surfaces. The positioning discs are disposed on the corresponding rotating portions respectively and are pivotally connected to the friction pieces. The friction pieces and the frame clamp the corresponding rotating portions, so that the rotating portions and the positioning discs are adapted to rotate relative to the friction pieces and the frame and rub against the corresponding friction pieces simultaneously.

A rotary extending frame includes a frame, a handle, a plurality of friction pieces, and a plurality of positioning discs. The frame has a plurality of accommodation spaces and fastening portions. The handle is rotatably disposed on the frame and has a holding portion and a plurality of rotating portions connected to two ends of the holding portion and facing two side surfaces of the frame respectively. The friction pieces are disposed on the corresponding rotating portions respectively and are firmly attached on the two side surfaces. The positioning discs are disposed on the corresponding rotating portions respectively and are pivotally connected to the friction pieces. The friction pieces and the frame clamp the corresponding rotating portions, so that the rotating portions and the positioning discs are adapted to rotate relative to the friction pieces and the frame and rub against the corresponding friction pieces simultaneously.

This disclosure provides storage chassis including base storage sub-assemblies and partitions. Base includes bottom plate, top plate, first side plate and second side plate. Front side of bottom plate is opposite to back side of bottom plate. Bottom plate is located opposite to top plate. First side plate is located opposite to second side plate. First side plate and second side plate are connected to and located between bottom plate and top plate. Storage sub-assemblies are movably disposed between first side plate and second side plate. Partitions are disposed between first side plate and second side plate. Opposite ends of each partition are respectively connected to top plate and bottom plate. Partitions separate storage sub-assemblies from one another so that storage sub-assemblies are respectively located in airflow channels that are independent to one another.

A hard disk drive (HDD) carrier bracket for use in mounting a hard disk drive (HDD) in a chassis via a HDD tray includes a first frame member and a second frame member. The second frame member is coupled to the first frame member such that the first and second frame members are moveable relative to one another, between an extended position and a collapsed position. The HDD carrier bracket is installable in the HDD tray without tools. The HDD tray is installable in the chassis without tools.

A hard disk drive (HDD) carrier bracket for use in mounting a hard disk drive (HDD) in a chassis via a HDD tray includes a first frame member and a second frame member. The second frame member is coupled to the first frame member such that the first and second frame members are moveable relative to one another, between an extended position and a collapsed position. The HDD carrier bracket is installable in the HDD tray without tools. The HDD tray is installable in the chassis without tools.

Embodiments of the present disclosure provide a top cover arrangement for a storage and the corresponding storage. The storage comprises a drawer chassis which accommodates disks that are organized among a plurality of rows. The top cover arrangement covers the disks in a foldable manner and comprises: a substrate covering the disks and being flexible; and a plurality of folding parts mounted on the substrate and corresponding to the plurality of the rows; the folding parts being adapted to be at least partially folded to expose at least one row of disks in response to the disks being pulled out of the drawer chassis.

A media player unit having a circuitry is disclosed herein. The media player unit comprises at least two dedicated memory sets, wherein one of the at least two dedicated memory set is fed with a first display content and another one of the at least two dedicated memory set is fed with a second display content. At least one switch is coupled to each of the dedicated memory sets for facilitating selective playing of the first display content or the second display content stored in any one of the at least two memory sets by the media player unit. In one embodiment, the switch is a single or double-pole-double-throw (SPDT or DPDT) toggle switch with a pull cord. In another embodiment, the switch is configured to be activated via a remote controller.

A computer system includes a computer casing having a casing wall having an opening to pass through a connection means; a circuit board having the connection means; and a centering means arranged in the casing, wherein the centering means is formed to cooperate with the circuit board such that the circuit board is centered with respect to the casing wall in a direction of the casing wall in a placing movement so that the connection means takes a predetermined position flush with respect to the opening in the casing wall and can plunge into the opening.

Embodiments of the present disclosure provide a top cover arrangement for a storage and the corresponding storage. The storage comprises a drawer chassis which accommodates disks that are organized among a plurality of rows. The top cover arrangement covers the disks in a foldable manner and comprises: a substrate covering the disks and being flexible; and a plurality of folding parts mounted on the substrate and corresponding to the plurality of the rows; the folding parts being adapted to be at least partially folded to expose at least one row of disks in response to the disks being pulled out of the drawer chassis.